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Product Description
Fresnel lenses can be used as magnifiers or projection lenses. They are great for reading fine print in books, magazines, maps, telephone directories, recipes, etc. Makes a great gift for those who need a visual aid. They need to be elevated 4 to 6 inches from the page in order to magnify. These can also be used for light duty solar projects. Lens details: 7.00" x 10.25" Inches, Thickness: 0.4mm, Weight: 26 grams, Groove pitch: 0.3mm, Focal length: 300mm, Magnification: 3x, Material: optical PVCFeatures
- Lot of 10 Fresnel Lenses
- Lightweight, flexible, durable PVC
- Visual Aid -- Great for reading small text
- Great for Light Duty Solar Projects such as DIY Solar Cooking and Heating
- Aids Presbyopia (diminished close vision that eventually effects EVERYONE)
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Details were last updated on Nov 6, 2024 11:01 +08.
