XXL Sheet Magnifier
This is a very large Fresnel magnifier. Can be used for a variety of appliactions : solar energy collection, hot water heater, fire starter.
Size: 395mm x 395mm Thickness: 2 mm Material: optical acrylic Groove pitch: 0.5mm Focal length: 220mm Magnification: 3x
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Price: £24.95 £19.95