Pocket Magnifier with LED light
![]() |
Applications: 1. Industrial purpose 2. Circuit board and printing 3. Medicine 4. Gardening 5. Money and Stamp 6. Education 7. Geography 8. Family and office Specifications: Model ML750, 7X, Φ50mm Model ML665, 6X, Φ65mm Model ML475, 4X, Φ75mm |
|
Digital
Microscope Camera
![]() |
ORDER NO.: CY-200B: 200X CY-500B: 500X CY-800B: 800X CY-1000B: 1000X CY-1600B: 1600X |
|
Applications Industrial Inspection, Computer Parts inspection, Telecom module inspection, Scientific teaching tool, Laboratory Research, Medical analysis, School Research tool, Insect dissection/examination, Plant dissection/examination, Skin examination, Scalp examination, Textile Inspection, Jewelry Inspection, Collections/Coin Inspection, Printing Inspection, Reading Aid, On-line chatting... |
|
Specifications 1. Image CMOS Sensor 2. Controller High Speed DSP (Driver Free available) 3. Focus Range 10mm ~ far view 4. Snap Shot Software and Hardware 5. Video Capture Resolution Standard 640*480, Max 1600*1200 6. Built-in 8 White-light LED and adjustable illumination ensure the magnified images are clear and bright 7. Still Image Capture Resolution Standard 640*480, Max 1600*1200 8. Frame Rate 30 f/s under 600 LUX Brightness 9. Digital Zoom 5X Sequence Mode 10. Brightness Control Manual adjustment 11. Magnification Range: 200X, 500X, 800X, 1000X, 1600X 12. Power Supply USB Port (5V DC) 13. USB 2.0 & USB 1.1 Compatible 14. Operation System Windows XP, Vista, Win 7 32 bit and 64 bit. 15. Language: English, Chinese and other language by selection 16. System Requirement: Pentium Computer with 700M Hz & above, 17. 20M HD Space CD ROM Driver, 64MB RAM, Direct X VGA Card 18. CD disk Driver and Micro-Measurement Tool 19. Product dimension 112 mm (L) X 33 mm (R) 20. Product net weight: 250g |
|
200X
Digital
Microscope Camera M200
![]() |
Specifications 1. Up 10x to 200x Magnifications (continuously tunable built-in objective) 2. White LED (Top and Bottom light) 11 levels of Brightness Illumination 3. Function of Linear Size Measurement 4. 1/4” CMOS VGA 1.3M Image Senor 5. USB1.1 Full speed 6. Handhold Operation , Heavy-duty 7. Snapshots 8. Capture in Video 9. Compatible with Window 2000/XP/Vista 10. Dimensions: ~120x170x250mm 11. Weight: ~0.5kg 12. Slide Glass x 2, USB Cable, Tweezers, Calibration Plate |
|
WIFI
Digital
Microscope Camera M200W
![]() |
Specifications Free iOS App, Google's Android App, supports to view the microscope though iPhone, Google's Android smartphone, iPad ect. 1. Connection interface: Wi-Fi wireless 2. Image sensor: 1.3MP 3. Color: 24-bit RGB 4. Lens: dual-axis 27/100x microscope lens 5. Focus range: 10mm to infinite 6. Magnification ratio: 10 to 200x 7. White balance: auto 8. Exposure: auto 9. Light source: 8 LEDs |
|
Portable 60x-100x Zoom
Microscope 75017
![]() |
Magnification: 60X-100X
zoom With lamp A precision illuminated zoom microscope with 30x magnification power. Focus can be adjusted by turning the wheel and the rotatable bulb can pinpoint the light on the object. Countless uses for hobbyists, collectors, electronic engineers, scientists and students. 100 pcs/CTN |
|
Portable 60X-100X Zoom
Microscope With Lamp MG10081-1
![]() |
This is a portable illuminated zoom microscope, focus can be adjusted by turning the wheel and the rotatable bulb can pinpoint the light on the object. Countless uses for hobbyists, collectors, electronic engineers, scientists and students. Magnification: 60x-100x zoom With LED light Size of body: 84mm x 35mm x 20mm Weight/pcs: 33g 200pcs/ctn: 38.5cm x 34cm x 25.5cm |
|
Portable Measuring Microscope XC
Serials
![]() |
Specification: |
|
XC-100L | XC-50L | XC-40L | XC-20L |
|
Total Magnification |
100× | 50× | 40× | 20× | |
Mechanical Tube Length |
160mm | ||||
Eyepiece |
10× | ||||
Objective |
10× | 5× | 4× | 2× | |
Numerical Aperture |
0.25 | 0.12 | 0.1 | 0.05 | |
Diameter of Viewing field in Eyepiece |
φ18mm | ||||
Eyepiece Reticle |
0.1mm | ||||
Fine Division |
0.01mm | 0.02mm | 0.025mm | 0.05mm | |
Working Distance |
6.93mm | 17.6mm | 18mm | 17.2mm | |
Focus Range |
30mm | ||||
Diameter of Bearing Plane |
φ63mm | ||||
Height of Microscope |
210mm | ||||
Mass of Microscope |
650g | ||||
Illumination |
Pen light, No.7 battery |
|
XC-100 |
XC-60 |
XC-40 |
XC-20 |
XC-100L |
XC-60L |
XC-40L |
XC-20L |
Eyepiece10×/ Cross with Reticle |
● |
● |
● |
● |
● |
● |
● |
● |
Objective10× |
● |
|
|
|
● |
|
|
|
Objective5× |
|
● |
|
|
|
● |
|
|
Objective4× |
|
|
● |
|
|
|
● |
|
Objective2× |
|
|
|
● |
|
|
|
● |
Pen
Light Illumination |
|
|
|
|
● |
● |
● |
● |
SX-A1 Student Biological
Microscope
![]() |
Student microscope, very
popular in school and laboratory. Eyepiece: 10X, Objective 4x, 10x, 40x, 1.45º inclined with locked-in eyepiece. 2.Eyepiece: 10* 3.Objective 4x, 10x, 40x, 4.With plan -concave mirror 5.with illumination Optional Accessory: Eyepiece: WF5X, 10X, 15X, 25X Biological Slides Biological Dissection Set Zoom eyepiece: 1.0X-1.4X Outer-connected illumination: 220V/110V,6V/6W |
|
N-800M Laboratory Biological
Microscope
![]() |
Description With Infinite Optical System, Kohler Illumination, Providing Excellent Optical Quality and making Image Perfect. With Low and Forward Position Coaxial Focus System, Focusing Knobs and Brightness Adjustable Knob within reaching Location, Stable Integral Structure, Reasonable Ergonomic Design, Making. Operator Feel More Comfortable and Effective. |
Features: |
![]() |
Comfortably observing with compensation free
trinocular head Inclined at 30° Suitable for observer with wide interpupillary range of 48-75mm |
![]() |
Larger viewing area with extra wide field
eyepiece EW10×/ 22 Focus control with diopter adjustable |
![]() |
Big operating space with backward quintuple nosepiece |
![]() |
Rectangle double layers mechanical stage 185×142mm, moving range 75×55mm, comfortable operation with low position adjustable knobs |
![]() |
Perfect image with infinite plan achromatic objective |
![]() |
Overcoming illumination asymmetry at low magnification observation |
![]() |
With aspherical condenser and Kohler illumination, providing enough, even and high contrast illumination for various objective observations. |
![]() |
External illumination, halogen lamp 12V/ 30W, brightness adjustable |
Specification: | N-800M |
![]() |
||
Viewing Head | Seidentopf Binocular Head | ○ | ||
Seidentopf Trinocular Head | ● | |||
Eyepiece | Extra Wide Field Eyepiece EW10×/ 22 | ● | ||
Nosepiece | Backward Quintuple Nosepiece | ● | ||
Backward Sextuple Nosepiece | ○ | |||
Objective | Infinite Plan Achromatic Objective | 4× | ● | |
10× | ● | |||
20× | ○ | |||
40× | ● | |||
100× | ● | |||
Objectives for Dark Field | 100× | ○ | ||
Condenser | Swing-out Condenser NA 0.9/ 0.25 | ● | ||
Stage | Double Layers Mechanical Stage 185×142/ 75×55 | ● | ||
Illumination | External Illumination, Aspherical Collector, Halogen Lamp6V/ 30W | ● | ||
50W/ 100W Power Supply | ○ | |||
Photo Attachment | ○ | |||
Video Adapter | C Mount 1× | ○ | ||
C Mount 0.5× | ○ | |||
Filter | Blue Filter | ● | ||
Green Filter | ● | |||
Multi Viewing Attachments | Multi Viewing Attachments for 5 persons | ○ | ||
Multi Viewing Attachments for 3 persons | ○ | |||
Multi Viewing Attachments for 2 persons | ○ | |||
Polarization Attachment | ○ | |||
Phase Contrast Kit | Turret Phase Contrast Kit | ○ | ||
Dark Field Attachment | ○ | |||
Epi-fluorescent Attachment | ○ | |||
Temperature Controlled Stage | ○ | |||
Drawing Attachment | ○ | |||
Note: ●Standard Outfit, ○Optional |
![]() |
![]() |
NDFA-D Dark Field Condenser (Dry) | NDFA-O Dark Field Condenser (Oil) |
![]() |
![]() |
NPHA Turret Phase Contrast Kit | Polarization Attachment |
N-510 Series Multi-viewing
Microscope
![]() |
Description |
![]() |
||||
Multi-viewing Microscope allows people observation at the same time. | |||||
With the features of Infinite Optical System, Effective Illumination, LED Pointer and images Coherence, it is widely used in Clinic, Scientific Research and Teaching Demonstration. | |||||
Specification: | |||||
N-510 | N-306 | N-204 | |||
Optical System | Infinite Optical System | ● | ● | ● | |
Viewing Head | Compensation Free Trinocular Head, Inclined at 30°, 360° Rotatable, Interpupilary Distance 48-75mm | 1PC | 1PC | 1PC | |
Compensation Free Binocular Head, Inclined at 30°, 360° Rotatable, Interpupilary Distance 48-75mm | 4PCS | 2PCS | 1PC |
![]() |
|
Eyepiece | Extra Wide Field Eyepiece EW10x/20 | 10PCS | 6PCS | 4PCS | |
Nosepiece | Inverse Quintuple Nosepiece | ● | ● | ● | |
Objective | Infinite Plan Achromatic Objective 4×,10×,40×,100× | ● | ● | ● | |
Condenser | Swing Condenser N.A.0.9/ 0.25 | ● | ● | ● | |
Focusing | Coaxial Coarse & Fine Focus Adjustment, Fine Division 0.002mm | ● | ● | ● | |
Stage | Double Layers Mechanical Stage 185×142mm, Moving Range 75×55mm | ● | ● | ● | |
Kohler Illumination | External Illumination, Halogen Lamp 12V/ 50W | ● | ● | ● |
![]() |
Pointer | Green LED Pointer , Brightness Adjustable | ● | ● | ● | |
Dual Color Pointer , Brightness Adjustable | ○ | ○ | ○ | ||
Photo Attachment | ○ | ○ | ○ | ||
Video Adapter | C Mount 1× | ○ | ○ | ○ | |
C Mount 0.5× | ○ | ○ | ○ | ||
Note: ●Standard Outfit ○Optional |
N-400M Biological Microscope
![]() |
High transmission optical system, combined base and arm design and wide range of accessories make it an ideal instrument for biology, bacteriology, histology, immunology and pharmacology. | ||
Features: |
![]() |
|
![]() |
Monocular, Binocular and Trinocular Head Available for Different Requirements | |
![]() |
Big Operating Space With Backward Nosepiece
Easier Comparing Test with Large Size Double Layer Mechanical Stage |
|
![]() |
More Comfortable Operation with Low Position
CA and FA Knob, Low Stage Control and Narrow
Base Even Illumination with Modern Design, Kohler Illumination and Aspheric Collector can be Adapted |
|
![]() |
Aluminium Carrying Case Available for High Level Packing Requirement | |
Specification: |
N-400M | ||
Viewing Head | Compensation Free Binocular Head, Inclined at 30°, 360° Rotatable |
● |
Monocular Head, Inclined at 30°, 360° Rotatable |
○ |
|
Compensation Free Trinocular Head, Inclined at 30°, 360° Rotatable |
○ |
|
Eyepiece | Wide Field Eyepiece WF10×/ 18 |
● |
Wide Field Eyepiece WF16×/ 11 |
○ |
|
Objective | Achromatic Objective 4×, 10×, 40×, 100× |
● |
Achromatic Objective 20×, 60× |
○ |
|
Plan Achromatic Objective 4×, 10×, 20×, 40×, 60×, 100× |
○ |
|
Nosepiece | Backward Quadruple Nosepiece |
● |
Backward Quintuple Nosepiece |
○ |
|
Stage | Double Layers Mechanical Stage 140×140mm/ 75×50mm |
● |
Condenser | NA 1.25 Abbe Condenser with lris Diaphragm and Filter, Rack & Pinion Adjustment |
● |
Focusing | Coaxial Coarse & Fine Adjustment System, Range 28mm, Fine Division 0.002mm |
● |
Illumination | Halogen Lamp 6V/ 20W, Brightness Adjustable |
● |
Kohler Illumination |
○ |
|
Polarization Set | Simple Polarization Set |
○ |
Phase Contrast Kit | Simple Phase Contrast Kit |
○ |
Sliding Phase Contrast Kit |
○ |
|
Turret Phase Contrast Kit |
○ |
|
Dark Field Attachment | Dark Field Condenser (Dry) NA 0.9 |
○ |
Dark Field Condenser (Oil) NA 1.25-1.36 |
○ |
|
Epi-fluorescent Attachment |
○ |
|
Filter |
● |
|
Photo Attachment |
○ |
|
Video Attachment |
○ |
|
Note: ● Standard Outfit, ○ Optional |
N-300M Biological Microscope
![]() |
Excellent image quality with infinitive optical system. |
![]() |
|
Comfortable operating with ergonomic structure. | ||
Better illumination with sliding-in centerable condenser, Convenient replacement with phase contrast and dark field condenser. | ||
Features | ||
![]() |
Extra Wide Field Eyepiece EW10X/20 with Diopter Adjustment as Optional | |
![]() |
Comfortable Observation with Eyepoint and interpupillary adjustable | |
![]() |
Sliding-in Centerable Condense Adjustable | |
![]() |
Handle for easy carrying | |
![]() |
Lamp Replacement by Direct Removing Housing | |
Specification |
|
N-300M |
||
Viewing Head | Compensation Free binocular head, 30° inclined, Interpupillary 48-75mm | ● | |
Compensation Free trinocular head, 30° inclined, Interpupillary 48-75mm | ○ | ||
Eyepiece | Wide Field Eyepiece WF 10×/18 | ● | |
Extra Wide Field Eyepiece EW10×/20 with Diopter Adjustment | ○ | ||
Objective | Infinitive Semi-plan Achromatic Objectives | 4× | ● |
10× | ● | ||
40× | ● | ||
100× | ● | ||
Nosepiece | Quadruple Nosepiece | ● | |
Stage |
Double Layers Mechanical Stage 140mm×140mm/
75mm×50mm |
● | |
Condenser | Sliding-in centerable condenser NA12.5 | ● | |
Focusing | Coaxial Coarse & Fine Adjustment, Moving Range 20mm | ● | |
Illumination | 6V/ 20W Halogen Lamp, Brightness Adjustable | ● | |
Phase Contrast Kit | ○ | ||
Dark Field Attachment | ○ | ||
Note: ● Standard Outfit, ○ Optional |
N-200M Biological Microscope
![]() |
With excellent optical system and reliable structure, it makes the image much sharper, and the operation easier. With wide range of accessories [e.g. dark field, phase contrast, epi-fluorescent] and advances to expand the application scope of the N-200M, the versatility of the microscope provides More Microscopy for you. | ||
Features |
![]() |
|
![]() |
Big Operating Space with Backward Nosepiece, Sharp Image with High Quality Objectives | |
![]() |
Easier Comparing Test with Dual Slides Finger of Mechanical Stage | |
![]() |
Comfortable Handling with Precise Focusing System | |
Specification: |
N-200M | ||
Viewing Head | Compensation Free Binocular Head, Inclined at 30° | ● |
Compensation Free Trinocular Head, Inclined at 30° | ○ | |
Monocular Head, Inclined at 30° | ○ | |
Eyepiece | Wide Field Eyepiece WF10×/ 18 | ● |
Wide Field Eyepiece WF16×/ 11 | ○ | |
Objective | Semi-plan Achromatic Objective 4×, 10×, 40×, 100× | ● |
Plan Achromatic Objective 4×, 10×, 20×, 40×, 60×, 100× | ○ | |
Nosepiece | Backward Quadruple Nosepiece | ● |
Quintuple Nosepiece | ○ | |
Stage | Double Layers Mechanical Stage 140×140mm/ 75×50mm | ● |
Condenser | NA 1.25 Abbe Condenser with lris Diaphragm and Filter | ● |
Illumination | Halogen Lamp 6V/ 20W, Brightness Adjustable | ● |
Kohler Illumination | ○ | |
Filter | Blue Filter | ● |
Green Filter | ● | |
Polarization Set | Simple Polarization Set | ○ |
Phase Contrast Kit | Simple Phase Contrast Kit | ○ |
Sliding Phase Contrast Kit | ○ | |
Turret Phase Contrast Kit | ○ | |
Dark Field Attachment | Dark Field Condenser (Dry) NA 0.9 | ○ |
Dark Field Condenser (Oil) NA 1.25-1.36 | ○ | |
Epi-fluorescent Attachment | ○ | |
Pointer | Green LED Pointer System | ○ |
Note: ●Standard Outfit, ○Optional |
N-180M Biological Microscope
![]() |
Nice shape, excellent optical system and flexible outfit make you enjoy the microscope. | ||
It is an ideal instrument for biology field, bacteriology field, immunology field, pharmacology field and so on. | ||
Features: | ||
![]() |
Convenient and Comfortable Observing with High Point and Wide Field Eyepiece EW10×/ 20 |
![]() |
![]() |
Sharp and Bright Image with Semi-plan Objectives | |
![]() |
Replacement of bulbs become easier and more secure, just take away the Collector without overturn the microscope | |
![]() |
Convenient Handling with Special Design Low Position Coarse & Fine Adjustment Suitable for Different Region Power Supply with 100V-240V Multi-input Rating | |
Specification: |
N-180M | ||
Viewing Head | Compensation Free Binocular Head, Inclined at 30°, 360° Rotatable | ● |
Compensation Free Trinocular Head, Inclined at 30°, 360° Rotatable | ○ | |
Eyepiece | Wide Field Eyepiece EW10×/ 20 | ● |
Wide Field Eyepiece WF16×/ 11 | ○ | |
Objective | Semi-plan Achromatic Objective 4×, 10×, 40×, 100× | ● |
Plan Achromatic Objective 4×, 10×, 20×, 40×, 60×, 100× | ○ | |
Nosepiece | Backward Quadruple Nosepiece | ● |
Quintuple Nosepiece | ○ | |
Stage | Double Layers Mechanical Stage 140×140mm/ 75×50mm | ● |
Condenser | NA 1.25 Abbe Condenser with lris Diaphragm and Filter | ● |
Illumination | Halogen Lamp 6V/ 20W, Brightness Adjustable | ● |
Kohler Illumination | ○ | |
Photo Attachment | ○ | |
Video Attachment | C Mount 1× & 0.5× | ○ |
Filter | Blue Filter | ● |
Green Filter | ● | |
Polarization Set | Simple Polarization Set | ○ |
Phase Contrast Kit | Simple Phase Contrast Kit | ○ |
Sliding Phase Contrast Kit | ○ | |
Turret Phase Contrast Kit | ○ | |
Dark Field Attachment | Dark Field Condenser (Dry) NA 0.9 | ○ |
Dark Field Condenser (Oil) NA 1.25-1.36 | ○ | |
Epi-fluorescent Attachment | ○ | |
Pointer | Green LED Pointer System | ○ |
N-120/N-120A Biological
Microscope
![]() |
Sharp Image Display with Excellent Optical Function. |
![]() |
|
Small Space Occupancy with Integral Stand Design, Low Environment Requirement with Anti-mould Technology. | ||
Comfortable Operation with Ergonomic Design. | ||
![]() |
Available to observe the specimen from rear of the body (N-120) | |
![]() |
Comfortable Operation with Low Position Coarse & Fine Adjustment Knobs | |
![]() |
Higher Contrast and Sharper Image with High Quality Objectives | |
Specification: |
Viewing Head | Compensation Free Binocular Head, Inclined at 30° | ● |
Compensation Free Trinocular Head, Inclined at 30° | ○ | |
Eyepiece | Wide Field Eyepiece WF10×/ 18 | ● |
Wide Field Eyepiece WF16×/ 11 | ||
Objective | Achromatic Objective 4×,10×,40×,100× | ● |
Plan Achromatic Objective 4×,10×,40×,100× | ○ | |
Nosepiece | Quadruple Nosepiece | ● |
Stage | Double Layers Mechanical Stage 140×140mm/ 75×50mm | ● |
Condenser | NA 1.25 Abbe Condenser with Iris Diaphragm and Filter | ● |
Illumination | Halogen Lamp 6V/ 20W, Brightness Adjustable | ● |
Photo Attachment | ○ | |
Video Adapter | C Mount 1× | ○ |
C Mount 0.5× | ○ | |
Filter | Blue Filter | ● |
Green Filter | ● | |
Dark Field Attachment | Dark Field Condenser (Dry) | ○ |
Dark Field Condenser (Dry) | ○ | |
Phase Contrast Kit | Single Phase Contrast Kit | ○ |
Sliding Phase Contrast Kit | ○ | |
Turret Phase Contrast kit | ○ | |
Polarization Set | Simple Polarization Set | ○ |
Fluorescent Attachment | Epi-fluorescent Attachment | ○ |
XSZ-N107 Series Biological
Microscope
![]() |
XSZ-N107 series microscope is improved on the basis of XSZ-107BN series such as adding Anti-mould device and some decoration. It looks nice and much modern. | ||
|
|
|
Specification: | N106 | N107 | N207 | N107E | N107CCD | |
Viewing Head | Monocular Head Inclined at 45°, 360° Rotatable | ● | ||||
Sliding Binocular Head Inclined at 45°, 360° Rotatable; Anti-mould | ● | |||||
Compensation Free Binocular Head Inclined at 30°, 360° Rotatable; Anti-mould | ● | |||||
Trinocualr Head for Photography | ● | |||||
Trinocular Head for Video Camera (C Mount) | ● | |||||
Eyepiece | Wide Field Eyepiece WF10×,P16 × | ● | ● | ● | ● | ● |
Objective | Achromatic Objective 4×,10×,40×(S),100×(S, Oil) | ● | ● | ● | ● | ● |
Nosepiece | Quadruple Nosepiece | ● | ● | ● | ● | ● |
Stage | Double Layer Mechanical Stage 140×140mm/ 75×50mm | ● | ● | ● | ● | ● |
Focusing | Coaxial Coarse & Fine Adjustment, Moving Range 28mm, Fine Division 0.002mm | ● | ● | ● | ● | ● |
Condenser | Abbe NA 1.25 with Iris Diaphragm & Filter | ● | ● | ● | ● | ● |
Dark Field Condenser NA 0.9 (Dry) | ○ | ○ | ○ | ○ | ○ | |
Dark Field Condenser (Oil) NA 1.25-1.36 | ○ | ○ | ○ | ○ | ○ | |
Illumination | Built-in Illumination, Halogen Lamp 6V/20W | ● | ● | ● | ● | ● |
Plan-concave Mirror | ● | ● | ● | ● | ● | |
Kohler lighting fixtures | ○ | ○ | ○ | ○ | ○ |
XSZ-109 Series Biological
Microscope
![]() |
With excellent optical system, reliable structure and reasonable price, XSZ-109 series biological microscope is widely used in academic and medical fields. |
||
![]() |
![]() |
![]() |
Specification: | XSZ-109A | XSZ-109B | XSZ-209 | |
Viewing Head | Monocular Head, Inclined at 30°, 360°, Rotatable | ● | ● | |
Compensation Free Binocular Head, Inclined at 30°, 360°, Rotatable | ● | |||
Eyepiece | Wide Field Eyepiece WF10×/ 18 | ● | ● | ● |
Wide Field Eyepiece WF16×/ 11 | ● | ● | ● | |
Objective | Achromatic Objective 4×,10×,40×,100× | ● | ● | ● |
Nosepiece | Quadruple Nosepiece | ● | ● | ● |
Stage | Double Layer Mechanical Stage, 120×120mm/ 60×30mm | ● | ● | ● |
Condenser | Abbe NA1.25 with Iris Diaphragm and Filter | ● | ● | ● |
Illumination | Built-in Illumination, Halogen Lamp 6V/ 15W | ● | ● | |
Plan-concave Mirror | ● | ○ | ○ | |
Filter | Blue Filter | ● | ● | ● |
Green Filter | ● | ● | ● |
XSZ-N204 Series Multi-viewing
Microscope
![]() |
The microscope is equipped with five heads for five persons observing at the same time. | |
![]() |
![]() |
Specification: | XSZ-N204 | XSZ-N304 | XSZ-510 | |
Viewing Head | Sliding Binocular Head, lnclined at 45° | 2Pcs | 1Pc | 5Pcs |
Monocular Head, lnclined at 45° | 2Pcs | |||
Eyepiece | Wide Field Eyepiece WF10× | 4Pcs | 4Pcs | 10Pcs |
Nosepiece | Quadruple Nosepiece | ● | ● | ● |
Objective | Achromatic Objective 4×, 10×, 40×,100× | ● | ● | ● |
Condenser | Abbe Condenser NA1.25 | ● | ● | ● |
Focusing | Coaxial Coarse & Fine Focus Adjustment, Fine Division 0.002mm | ● | ● | ● |
Stage | Double Layers Mechanical Stage 140×140mm/ 75×50mm | ● | ● | |
Plain Stage 140×140mm/ 75×50mm | ● | |||
lllumination | Halogen Lamp 6V/ 20W | ● | ● | |
Halogen Lamp 24V/ 100W | ● | |||
Pointer | Green LED Pointer , Brightness Adjustable | ● |
XSZ-107BN Series Biological
Microscope
![]() |
With Classical Shape, XSZ-107BN series microscope has been popular for 30 years. It can be widely used in medical and sanitary establishments, laboratories, institutes, colleges and universities. | |
![]() |
![]() |
Specification: | 106BN | 107BN | 207 | 107E | 107CCD | |
Viewing Head | Monocular Head Inclined at 45°, 360° Rotatable | ● | ||||
Sliding Binocular Head Inclined at 45°, 360° Rotatable | ● | |||||
Compensation Free Binocular Head Inclined at 30°, 360° Rotatable | ● | |||||
Sliding Trinocular Head for Photography | ● | |||||
Sliding Trinocular Head for Video Camera (C Mount) | ● | |||||
Eyepiece | Wide Field Eyepiece WF10×/ 18 | ● | ● | ● | ● | ● |
Wide Field Eyepiece WF16×/ 11 | ● | ● | ● | ● | ● | |
Objective | Achromatic Objective 4×,10×,40×,100× | ● | ● | ● | ● | ● |
Achromatic Objective 20×,60× | ○ | ○ | ○ | ○ | ○ | |
Plan Achromatic Objective 4×,10×,20×,40×,60×,100× | ○ | ○ | ○ | ○ | ○ | |
Nosepiece | Quadruple Nosepiece | ● | ● | ● | ● | ● |
Stage | Double Layer Mechanical Stage 140×140mm/ 75×50mm | ● | ||||
Single Layer Mechanical Stage140×140mm/ 75×50mm | ● | ● | ● | ● | ||
Condenser | Abbe NA1.25 with Iris Diaphragm & Filter | ● | ● | ● | ● | ● |
Illumination | Built-in Illumination, Halogen Lamp 6V/ 20W | ● | ● | ● | ● | |
Plan-concave Mirror | ● | ● | ● | ● | ● | |
Kohler illumination | ○ | ○ | ○ | ○ | ||
Photo Attachment | ○ | |||||
Video Adapter |
C Mount 1× | ○ | ● | |||
C Mount 0.5× | ○ | ○ | ||||
Filter | Blue Filter | ● | ● | ● | ● | ● |
Green Filter | ● | ● | ● | ● | ● | |
Polarization Set | Simple Polarization Set | ○ | ○ | ○ | ○ | ○ |
Phase Contrast Kit | Simple phase contrast kit | ○ | ○ | ○ | ○ | ○ |
Sliding phase contrast kit | ○ | ○ | ○ | ○ | ○ | |
Turret phase contrast kit | ○ | ○ | ○ | ○ | ○ | |
Dark Field Attachment | Dark Field Attachment (Dry) NA0.9 | ○ | ○ | ○ | ○ | ○ |
Dark Field Attachment (Oil) NA1.25-1.36 | ○ | ○ | ○ | ○ | ○ |
XSZ-107T Series Biological
Microscope
![]() |
Features: With precision machining equipment and advanced alignment technics, making improvement on the bass of traditional microscope XSZ-107BN. It is an ideal instrument in biological, histological, pathological field and can be widely used in academic demonstration and research. |
![]() |
|
|
XSZ-107T |
XSZ-N107T |
Viewing Head |
Sliding Binocular Head |
● |
● |
Sliding Trinocular Head |
○ |
○ |
|
hinge type Binocular Head |
○ |
○ |
|
Anti-mould |
○ |
● |
|
Eyepiece |
WF10X |
● |
● |
P16X |
○ |
○ |
|
Nosepiece |
Quadruple Nosepiece |
● |
● |
Quintuple Nosepiece |
○ |
○ |
|
Objective |
Achromatic Objective 4X,10X,40X,100X |
● |
● |
Stage |
Double Layers Mechanical Stage 140X140mm/ 75X50mm |
● |
● |
Condenser |
Abbe NA1.20 with Iris Diaphragm & Filter |
● |
● |
Focusing System |
Coaxial Coarse and Fine Adjustment, Fine Division 0.002mm, Coarse Stroke 37.7mm per Rotation, Fine Stroke 0.2mm per Rotation, Moving Range 28mm |
● |
● |
Armrest |
Black Armrest |
○ |
● |
Rubber Cover |
Rubber Cover for Focus Adjustment Knob |
○ |
● |
Illumination |
S-LED Illumination, Brightness Adjustable |
● |
● |
Halogen Lamp 100V-240V/ 6V20W |
○ |
○ |
|
Plan-concave Mirror |
● |
● |
N-100,N-101 Biological
Microscope
![]() |
With the feature of modern C frame shape, comfortable operation and reliable structure, it can be widely used in medical and sanitary establishments, laboratories, institutes, colleges and universities. | ||
![]() |
![]() |
![]() |
Specification: | 100A | 100C | 100B | 101A | 101C | 101B | |
Viewing Head | Monocular Head inclined at 45° | ● | ● | ● | ● | ||
Binocular Head inclined at 30° | ● | ● | |||||
Teaching Head | |||||||
Eyepiece | Wide Field Eyepiece WF10×/18 | ● | ● | ● | ● | ● | ● |
Eyepiece P16×/11 | |||||||
Objective | 185 Objective 4× | ● | ● | ● | |||
185 Objective 10× | ● | ● | ● | ||||
185 Objective 40× | ● | ● | ● | ||||
185 Objective 100× | ● | ● | |||||
Objective(DIN)4× | ● | ● | ● | ||||
Objective(DIN)10× | ● | ● | ● | ||||
Objective(DIN)40× | ● | ● | ● | ||||
Objective(DIN)100× | ● | ● | ● | ||||
Nosepiece | Triple Nosepiece | ● | |||||
Quadruple Nosepiece | ● | ● | ● | ● | ● | ||
Stage | Plain 125 ×120mm | ● | |||||
Attachable Mechanical Stage 120X120mm/ 60×30mm | ● | ● | ● | ||||
Double Layer Mechanical Stage 120X120mm/ 60×30mm | ● | ● | |||||
Condenser | Single Lens with Iris | ● | |||||
Abbe NA1.25 with Iris, Spiral up & down | ● | ● | ● | ||||
Abbe NA 1.25 with Iris, Rack & Pinion Adjustment | ● | ● | |||||
Illumination | Fluorescent Lamp 220V/ 110V/ 7W | ● | ● | ● | |||
Halogen Lamp 6V/ 15W, Brightness Adjustable | ● | ● | ● | ||||
Mirror | ○ | ○ | ○ | ○ | ○ | ○ | |
Filter | Blue Filter | ● | ● | ● | ● | ● | |
Green Filter | ● | ● | ● | ● | ● |
N-10 Series Biological
Microscope
![]() |
N-10 series microscope is an economical microscope with all basic features for educational use in elementary and high school. |
![]() |
Specification: |
N-10A |
N-10B |
N-10C |
N-10D |
|
Viewing Head |
Monocular, Inclined at 45°, 360° Rotatable |
● |
● |
● |
● |
Nosepiece |
Triple Nosepiece |
● |
● |
● |
● |
Eyepiece |
Wide Field Eyepiece WF10× |
● |
● |
● |
● |
Eyepiece 5×, 16× |
○ |
○ |
○ |
○ |
|
Eyepiece WF10× with Pointer |
○ |
○ |
○ |
○ |
|
Objective |
Achromatic DIN 4×, 10×, 40×(S) |
● |
● |
● |
● |
Objective DIN 20×, 60×, 100× |
○ |
○ |
○ |
○ |
|
Stage |
Plain Stage with Slide Clips, 110×120mm |
● |
● |
|
|
Plain Stag with Attachable Mechanical 110×120mm/ 60×30mm |
|
|
● |
|
|
Double Layers Mechanical Stage, 110×120mm/ 70×20mm |
|
|
|
● |
|
Focusing |
Coaxial Coarse and Fine Adjustment |
● |
● |
● |
● |
Condenser |
Single Lens NA 0.65 with Disc Diaphragm |
● |
|
|
|
Single Lens NA 0.65 with Iris Diaphragm |
|
● |
|
|
|
Abbe NA 1.2 with Iris Diaphragm & Blue Filter, Spiral Adjustment for Condenser |
|
|
● |
|
|
Abbe NA 1.2 with Iris Diaphragm & Blue Filter, Rack and Pinion Adjustment for Condenser |
|
|
|
● |
|
Illumination |
Incandescent Lamp 110V/ 220V/ 20W, Brightness Adjustable |
● |
● |
● |
● |
Mirror |
|
○ |
○ |
○ |
○ |
Spare Parts |
Dust Cover |
● |
● |
● |
● |
Spare Bulb |
● |
● |
● |
● |
|
Spare Fuse |
● |
● |
● |
● |
|
Package |
Styrofoam & Carton, Dimension
|
○ |
○ |
○ |
○ |
Wooden
Case & Carton Dimension |
○ |
○ |
○ |
○ |
|
Styrofoam & Wooden Case & Carton, Dimension 28×20×40cm |
○ |
○ |
○ |
○ |
XSP-102 Series Biological
Microscope
![]() |
With light and handy structure, 360° rotatable head and comfortable operation, it is an ideal educational instrument. | ||
![]() |
![]() |
![]() |
Specification: | XSP-102M | XSP-102A | XSP-102B | |
Viewing Head | Monocular Head, Inclined at 45°, 360° Rotatable | ● | ● | ● |
Eyepiece | Wide Field Eyepiece WF10×/18 | ● | ● | ● |
Wide Field Eyepiece WF16×/11 | ||||
Objective | Achromatic DIN 4×,10×,40×(S) | ● | ● | |
Achromatic DIN 4×,10×, 40×(S) ,100×(S, Oil) | ● | |||
Nosepiece | Triple Nosepiece | ● | ● | |
Quadruple Nosepiece | ● | |||
Stage | Plain Stage with Slide Clips 120×130mm | ● | ● | |
Attachable Mechanical Stage 120×130mm/ 60×30mm | ● | |||
Condenser | Single Lens with Disc Diaphragm | ● | ● | |
Abbe NA 1.25 with Iris Diaphragm and Filter | ● | |||
Illumination | Plan-concave Mirror | ● | ||
Built-in Illumination, Incandescent Lamp 110V/ 220V/ 15W | ● | ● | ||
Focusing | Separate coaxial knobs for coarse & fine adjustment | ● | ● | ● |
XSP-105 Series Biological
Microscope
![]() |
With sharp image and reasonable unit price, it is an ideal instrument for student use. |
![]() |
![]() |
Specification: | XSP-105A | XSP-105B | XSZ-104 | |
Eyepiece | Huygens Eyepiece H5×,H10× | ● | ● | ● |
Huygens Eyepiece H12.5× | ● | |||
Huygens Eyepiece H16× | ● | ● | ||
Objective | Achromatic Objective 10×,40× | ● | ● | ● |
Achromatic Objective 4×,60× | ○ | ○ | ○ | |
Achromatic Objective 100× | ○ | ○ | ● | |
Nosepiece | Triple Nosepiece | ● | ● | ● |
Stage | Plain Stage with Slide Clips 110×120mm | ● | ● | |
Attachable Mechanical Stage 110×120mm/ 60×30mm | ○ | ○ | ● | |
Condenser | Disc Diaphragm | ● | ||
Iris Diaphragm | ● | |||
Abbe with Iris Diaphragm and Filter | ● | |||
Illumination system |
Plan-concave Mirror | ● | ● | ● |
Attachable Illuminator | ○ | ○ | ○ | |
Filter | Blue Filter | ● | ||
Green Filter | ● |
XSP-103 Series Biological
Microscope
![]() |
With sharp image, convenient operation and favorable price, it became an ideal instrument for medical and sanitary establishments, institutes, colleges and university. |
![]() |
![]() |
Specification: | XSP-103A | XSP-103C | XSP-103B | |
Viewing Head | Monocular Head, Inclined at 45° | ● | ● | |
Sliding Binocular Head, Inclined at 45° | ● | |||
Seidentopf Type Binocular Viewing Head, Inclined at 30° | ○ | |||
Teaching Head | ○ | ○ | ○ | |
Eyepiece | Wide Field Eyepiece WF10×/18 | ● | ● | ● |
Wide Field Eyepiece WF16×/11 | ○ | ○ | ○ | |
Objective | Achromatic 4×,10×,40× | ● | ● | |
Achromatic 4×,10×,40×,100× | ● | |||
Nosepiece | Triple Nosepiece | ● | ● | |
Quadruple Nosepiece | ● | |||
Stage | Plain Stage with Slide Clips, 120×130mm | ● | ● | |
Attachable Mechanical Stage 110×120mm/ 60×30mm | ● | |||
Condenser | Single Lens with Disc Diaphragm | ● | ||
Abbe NA1.25 with Iris Diaphragm and Filter | ● | ● | ||
Illumination system |
15W Halogen Lamp | ● | ● | |
Halogen Lamp 6V/ 20W | ● | |||
Plan-concave Mirror | ● | ● | ● | |
Filter | Blue Filter | ● | ● | |
Green Filter | ● | ● | ||
Carrying Case | PVC Carrying Case | ○ | ○ | ○ |
NIB-100 Inverted Biological
Microscope
![]() |
Excellent Optical Function with Infinitive Optical System. Innovative Stand structure, Sharp Image Display, Convenient and Special for Viewing Incubating Cell Tissue. |
Features: |
||
![]() |
With LWD Infinitive Plan Objective, Making Viewing Field Flatter and Brighter, Contrast Sharper, Living Cell Observing easier |
|
![]() |
Advanced and Reliable Mechanical Stage with Knob Height and Tightness Adjustable | |
![]() |
Different Holders for Various Observations | |
![]() |
With pre-centerable Phase Annulus, Available to Observe Low Contrast or Transparent Specimens |
Specification: | NIB-100 | ||
Viewing Head | Trinocular Head Inclined at300, Interpupillary Distance48-75mm | ● | |
Eyepiece | High-point, Extra Wide Field Eyepiece EW10×/ 22 | ● | |
Objective | LWD Infinite Plan Objective | 4×/ 0.1, WD 18mm | ● |
10×/ 0.25, WD 10mm | ○ | ||
20×/ 0.4, WD 5.1mm | ○ | ||
40×/ 0.6, WD 2.6mm | ● | ||
Infinite Plan Phase Objective | PH10×/ 0.25, WD 10 mm | ● | |
PH20×/ 0.4, WD 5.1mm | ● | ||
PH40×/ 0.65, WD 0.35mm | ○ | ||
Nosepiece | Quintuple Nosepiece | ● | |
Condenser | ELWD Condenser NA 0.3, LWD 72mm (Without Condenser 150mm) | ● | |
Centering | Centering Telescope (Φ30MM) | ○ | |
Phase Annulus | 10×-20×,40× Phase Annulus Plate | ● | |
10×-20×,40× Phase Annulus Plate | ○ | ||
Stage | Plain Stage 160×250mm | ● | |
Glass Insert | ● | ||
Attachable Mechanical Stage, X-Y Coaxial Control, Moving Rang120×78mm | ○ | ||
Auxiliary Stages70×180mm | ● | ||
Terasaki Holder | ○ | ||
Φ38mm Petri Dish Holder | ○ | ||
Φ54mm Slide Glass Holder | ○ | ||
Focusing |
Coaxial Coarse and Fine Adjustment, Vertical
Objective Movement Coarse Stroke 37.7mm per Rotation, Fine Stroke 0.2mm per Rotation |
● | |
Illumination | Halogen Lamp 6V/ 30W | ● | |
Filter | Diameter 45mm, Blue,Green and Ground Glass | ● | |
Photo Attachment | ○ | ||
Video Adapter | Video Adapter with C Mount | ○ |
Bio-Microscope Microscope XSP-121V
![]() |
1. 45mm DIN Achromatic
Objective:4X,10X,40X(S),100X(S, Oil) 2. Wide Field Plane-Scope Eyepiece:WF10X; 3. Total Magnification:40X-1000X 4. Dual Observation Head,One Tube 30º Inclined And Another Tube Vertical,360º Rotatable 5. Double Layers Mechanical Stage:125X130mm, Moving Range X-Y:60X30mm 6. Ø2-Ø30mm Iris Diaphragm And Ø32 Filter; 7. ABBE Condenser:N.A. 1.25 8. Coaxial Coarse And Fine Focusing Adjustable Mechanism:20mm 9. Built-in Adjustable Brightness Halogen Lamp 6V/20W(or Incandescent, or Fluorescent, or LED) 10. Net Weight/Set:4.1kg; 11. Package:2 Sets/Carton 50X34X49cm; 12. Gross Weight/Carton:11kg |
|
Bio-Microscope Microscope XSZ-801DN
![]() |
1. 45mm DIN
Achromatic Objective: 4X,10X,40X(S),100X(S,Oil); 2. Wide Field Plane-Scope Eyepiece: WF10X,Wf16X 3. Articulated Free Binocular Head, Intepupillary Distance:55-75mm, 4. 30º Inclined, 360º Rotatable 5. Built-in Digital Camera System, Resolution:1280(H)*1024(V),1/2Chip, USB2.0 with Micro-image Process Software 6. Nosepiece: Forward Quadruple Nosepiece 7. Double Layers Mechanical Stage:140X155mm,Moving Range X-Y: 70X50mm 8. Ø2-Ø30mm Iris Diaphragm And Ø32 Filter with ABBE Condenser: N.A. 1.25 9. Coaxial Coarse And Fine Focusing Adjustable Mechansim: 25mm, 10. Precision:0.002mm 11. Built-in Adjustable Brightness Halogen Lamp 6V/20W |
![]() |
YX-2 Epi-fluorescent Attachment
![]() |
The Epi-fluorescent Attachment can be equipped flexibly with ordinary microscope as an Epi-fluorescent Microscope. Which present Excellent image quality and widely used in venereal disease examination and immuneless diagnosis. |
![]() |
|
Features: | ||
|
Comfortable Operation with New Adjustable Knob of New Lamp Housing and Prevent Light from Leaking | |
|
More Stable, Reliable Power Supplier NFP-1, with Display and Timer |
Specification: |
YX-2B |
|
Reflected Light Source |
Blue, Green Exciting Light Filter System and O Ordinary Light System |
● |
Ultraviolet, Violet Exciting Light Filter System and O Ordinary Light System |
○ |
|
Illumination |
100W HBO Ultra Hi-voltage Spherical Mercury Lamp |
● |
Protection Barrier |
Barrier to Resist the Ultraviolet Light |
● |
Power Supplier |
Power Supplier NFP-A,AC Input 220V, Indicator Display |
|
Power Supplier NFP-1, AC Input 220V/ 110V (Interchangeable), Digital Display and Timer |
● |
|
Fluorescent Objective | 4×, 10×, 40× (S), 100× (S, Oil) |
● |
Immersion oil |
Fluorescence Free Oil |
● |
NTX Serials
Stereo Microscope
![]() |
NTX series stereo microscopes are of fully coated excellent optical system providing high resolution and crisp erect image. They are widely used in electric factories, schools laboratories, sculpture and families and so on. |
Specifications: |
NTX-1A |
NTX-1B |
NTX-1C |
||
Head |
Straight Binocular Viewing Head |
● |
● |
● |
|
Eyepiece |
WF5× |
○ |
○ |
○ |
|
WF10× |
● |
● |
● |
||
WF15× |
○ |
○ |
○ |
||
WF20× |
○ |
○ |
○ |
||
Objective |
Inserted Objective |
1× |
○ |
○ |
○ |
2× |
● |
● |
● |
||
3× |
○ |
○ |
○ |
||
4× |
○ |
○ |
○ |
||
6× |
○ |
○ |
○ |
||
Working Distance |
80mm |
● |
● |
● |
|
Illumination |
No Light |
● |
|
|
|
Epi-illumination 12V/10W |
|
● |
● |
||
Diascopic Illumination 12V/10W |
|
|
● |
NTX-2A |
NTX-2B |
NTX-2C |
NTX-3A |
NTX-3B |
NTX-3C |
|||
Head |
Inclined Binocular Viewing Head, Unrotatable |
● |
● |
● |
● |
● |
● |
|
Eyepiece |
WF5× |
○ |
○ |
○ |
○ |
○ |
○ |
|
WF10× |
● |
● |
● |
● |
● |
● |
||
WF15× |
○ |
○ |
○ |
○ |
○ |
○ |
||
WF20× |
○ |
○ |
○ |
○ |
○ |
○ |
||
Objective |
Inserted Objective |
1× |
○ |
○ |
○ |
|
|
|
2× |
● |
● |
● |
|
|
|
||
3× |
○ |
○ |
○ |
|
|
|
||
4× |
○ |
○ |
○ |
|
|
|
||
6× |
○ |
○ |
○ |
|
|
|
||
Objective |
2×、4× |
|
|
|
● |
● |
● |
|
1×、2× |
|
|
|
○ |
○ |
○ |
||
1×、3× |
|
|
|
○ |
○ |
○ |
||
Working Distance |
80mm |
● |
● |
● |
|
|
|
|
57mm |
|
|
|
● |
● |
● |
||
Illumination |
No Light |
● |
|
|
● |
|
|
|
Transmitted light 6V/ 12W |
|
● |
● |
|
● |
● |
||
Incident light 6V/ 12W |
|
|
● |
|
|
● |
NTX-10 |
NTX-20 |
|||
Head |
Inclined Binocular Head |
● |
● |
|
Eyepiece |
WF5× |
○ |
○ |
|
WF10× |
● |
● |
||
WF15× |
○ |
○ |
||
WF20× |
○ |
○ |
||
Objective |
Objective |
2× & 4× |
● |
● |
1× & 2× |
○ |
○ |
||
1× & 3× |
○ |
○ |
||
Auxiliary Objective |
0.5× |
○ |
○ |
|
0.75× |
○ |
○ |
||
1.5× |
○ |
○ |
||
2× |
○ |
○ |
||
Working Distance |
72mm |
● |
● |
|
Illumination |
No Light |
● |
|
|
Epi-illumination 6V/ 12W |
|
● |
||
Diascopic Illumination 6V/ 12W |
|
● |
NTX-L |
|||
Head |
Inclined Binocular Head |
● |
|
Eyepiece |
WF5× |
○ |
|
WF10× |
● |
||
WF15× |
○ |
||
WF20× |
○ |
||
Objective |
Inserted Objective |
1× |
● |
0.5× |
○ |
||
Working Distance |
230mm (Inserted Objective 1×) |
● |
|
250mm (Inserted Objective 0.5×) |
○ |
||
Illumination |
Incandescent Lamp 12V/10W |
● |
NSZ-405 Zoom
Stereo Microscope
![]() |
Description
· High quality, high function and excellent cost performance. · Best choose with ergonomic design, sharp image display and wide viewing field. · Providing a wide viewing field of Φ20mm with the zoom ratio of 1:4.5. · Ideal instrument in academic, medical and industrial field. |
|
|||
![]() |
![]() |
![]() |
![]() |
|
Specifications: |
|
NSZ-405 |
|
Drawing Tube |
Binocular head, inclined at 45° |
● |
|
Binocular head, inclined at 60° |
○ |
||
Trinocular head, inclined at 45° |
○ |
||
Eyepiece |
Wide field eyepiece 10×/ Φ20 |
● |
|
15×/ 16 |
○ |
||
20×/ 12 |
○ |
||
10× Eyepiece with cross hair |
○ |
||
Objective |
Zoom objective |
0.7×~3× |
○ |
1×~4.5× |
● |
||
Auxiliary objective |
2×、0.75X、0.63X、0.5X |
○ |
|
Zoom Ratio |
1:4.3 |
○ |
|
1:4.5 |
● |
||
Working Distance |
97mm |
● |
|
Illumination |
LED Reflection illumination |
● |
|
LED Transmission illumination |
● |
||
Photo Attachment |
|
○ |
|
Video Attachment |
|
○ |
Note: ● Standard Outfit, ○ Optional |