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20X Chrome-plated Brass Achromatic Objective Lens for Microscope, 20.2mm Lens Interface

<div>Welcome to our store! We hope you have a wonderful shopping experience!</div>

<ul><li>Feature: 
1. Clearer: This lens is coated with high light transmittance, with high refractive index, and the image is brighter 
2. Automatic Rebound: Spring protection device, can automatically rebound when touches the cover glass during observation to protect the lens from crushing the specimen 
3. Brass Material: Made for brass material, fine workmanship, corrosion and fall prevention, exquisite and durable, chrome plated accuracy material for the shell 
4. Wide Application: The screw interface size is the international standard RMS size, which can be used by most professional biological microscopes on the market 
5. Basic Specifications: This lens has a magnification of 20X, common rail distance of 195mm, and parfocal distance of 45mm 
Specification: 
Item Type: Achromatic Objective 
Model: 20/0.40 
Material: Brass 
Use: Microscope Accessories 
Interface Size: Approx. 20.2mm / 0.80in (International Standard RMS Size) 
Magnification: 20X 
Numerical Aperture: Approx. 0.40mm / 0.02in 
Cover Glass Applicable Thickness: Approx. 0.17mm / 0.006in 
Microscope Applicable Mechanical Tube Length: Approx. 160mm / 6.30in 
Working Distance: Approx. 0.55mm / 0.02in 
Common Rail Distance: Approx. 195mm / 7.68in 
Parfocal Distance: Approx. 45mm / 1.77in 
Spring: Yes (Automatic Rebound). 
Package List: 
1 x Achromatic Microscope Objective1 x Storage Box</li></ul>

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Feature: 
1. Clearer: This lens is coated with high light transmittance, with high refractive index, and the image is brighter 
2. Automatic Rebound: Spring protection device, can automatically rebound when touches the cover glass during observation to protect the lens from crushing the specimen 
3. Brass Material: Made for brass material, fine workmanship, corrosion and fall prevention, exquisite and durable, chrome plated accuracy material for the shell 
4. Wide Application: The screw interface size is the international standard RMS size, which can be used by most professional biological microscopes on the market 
5. Basic Specifications: This lens has a magnification of 20X, common rail distance of 195mm, and parfocal distance of 45mm 
Specification: 
Item Type: Achromatic Objective 
Model: 20/0.40 
Material: Brass 
Use: Microscope Accessories 
Interface Size: Approx. 20.2mm / 0.80in (International Standard RMS Size) 
Magnification: 20X 
Numerical Aperture: Approx. 0.40mm / 0.02in 
Cover Glass Applicable Thickness: Approx. 0.17mm / 0.006in 
Microscope Applicable Mechanical Tube Length: Approx. 160mm / 6.30in 
Working Distance: Approx. 0.55mm / 0.02in 
Common Rail Distance: Approx. 195mm / 7.68in 
Parfocal Distance: Approx. 45mm / 1.77in 
Spring: Yes (Automatic Rebound). 
Package List: 
1 x Achromatic Microscope Objective1 x Storage Box

20X Chrome-plated Brass Achromatic Objective Lens for Microscope, 20.2mm Lens Interface

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