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Silver eye magnifying glass High Quality 30x21mm Jeweler Loupe Hot Selling
Dimensions: Open 6cm * 2.4cm * 1.8cm
folding 3.5 * 2.4 * 1.8cm
Color: Silver
Material: Metal, Optical glass
Parameters:
1, magnification: 30 times.
2, object field (see the area range): 16mm.
3, was working distance (the distance below the lens and be seen objects): 4mm.
4, the system length: 23.5mm.
5, volume size: 30 X 25mm.
6, eye pupil distance (distance between the lens and the eye above): 10mm.
7, the lens diameter of 21mm.
8, Lens: optical glass
Purpose: gem magnifying glass is commonly used in gem identification tools.
1, magnified observation of internal features of gem (inclusions) and external characteristics (such as acid etching textured jade B goods); antique p aintings identify good helper
2, diamond grading indispensable tool for diamond clarity grading and cut evaluation;
3, because of its compact and portable, applications in the jewelry industry is very common.
Usage: right hand holding a magnifying glass, making the lens parallel with the line of sight, left hand holding an object against bare need to watch slowly near the lens when moving objects are identified to find the most suitable observation position, the effect is very obvious!
packing Content:
1x 30x21mm Jeweler Loupe