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Object Screen

Description

A 75 mm metal screen with 10 mm central aperture covered with wire gauze.

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Bifocal Magnifier 3X/5X

Description

Two magnifiers built into one compact handle with a diameter of 50 mm made of acrylic.

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Lens Holder Wooden

Description

Wooden, with V shaped slot to take spherical lens or mirror up to 75 mm diameter, with index mark.
Lense holder, Wooden, 'V' Shaped.

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Concave Mirror, Spherical

Description

Optically worked, back silvered, with protective coating.

Focal length Add To Enquiry  
50 mm 75 mm  
50 mm 100 mm  
50 mm 150 mm  
50 mm 200 mm  
50 mm 300 mm  
60 mm 100 mm  
60 mm 150 mm  
60 mm 200 mm  
60 mm 300 mm  
75 mm 100 mm  
75 mm 150 mm  
75 mm 200 mm  
75 mm 300 mm  
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Lens, Biconvex, Acrylic

Description

Sizes :

75 mm long, 115 mm radii, 25mm thickness 75 mm long, 145 mm radii, 25mm thickness
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Block, Glass, Semi-Circular

Description

90 mm diameter,16 mm thickness

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Block Acrylic, Semi-Circular

Description

Sizes :

90 mm diameter x 16 mm thick 75 mm diameter x 20 mm thick
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Watchmaker’s Eye Glass

Description

Diameter 25 mm, mounted in plastic eye-grip frame
x 2.5 x 3 x 3.5 x 4

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Spherometer

Description

Brass dial head 40 mm diameter, divided and marked in 100 divisions, vertical scale 10-0-10 mm, fitted on tripod stand, distance between legs 40 mm.

Sizrs are mentioned below:-
Screw pitch 1 mm Screw pitch 0.5 mm

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