Opti*Media Fresnel lens F-53
Fresnel converging lens in XXL format: magnifies an entire book page twice.
Caution! This lens is also an incredibly powerful burning glass that concentrates the heat of the sun in the focal spot 400 times over, causing dry wood to burst into flames immediately.
Fresnel leaf magnifier
Focal length: + 310 mm
Size: 210 x 273 mm
Product safety information
Manufacturer information:
Astromedia
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