Collecting listings has surprises
Description Adopted of premium material, it is practical and durable for long time use. It is not easy to get deformed. That’s because our product can meet your need.
If you are looking for professional optical lens, then your research is over here.
Features
-Also suitable for reading newspapers, books, magazines, maps, science, jewelry, inspection, rocks, handicrafts and so on.
-Made of premium and high-class material, which is durable and wear resistant.
-With edge/edge thickness: 2.0mm
-Object distance: 53mm
-Magnification: 4.7 times
-Light transmittance: above 93%
-Center thickness: 7.5mm
-Temperature: -30℃+85℃
-Highly polished with ground edges, will not hurt your hands when use it.
-Focal length: 68mm
-Diameter: 42mm
-Excellent for physics classroom demonstrations in optics and light refraction.
-There are sufficient quantities to meet your replacement and usage needs.
-Color:Transparent
-Material:
-Size:4.20X4.20X0.75cm/1.65X1.65X0.29in
magnifying glasses