Six Seasons Portable Fresnel Lens 100×100mm, 50mm Focal Length PMMA Bookmark Magnifier for Reading & DIY Optical Viewfinder
Product Description
Six Seasons Portable Fresnel Lens 100×100mm, 50mm Focal Length PMMA Bookmark Magnifier for Reading & DIY Optical Viewfinder
- ✅ Compact 100×100mm size, 50mm fixed focal length. Thin flat magnifying sheet, works as convenient bookmark magnifier for books, newspapers and small print reading.
- ✅ Excellent auxiliary material for DIY optical viewfinder assembly. Ideal for optical hobbyists to build simple optical structure and complete optical exploration projects.
- ✅ Flat flexible Fresnel panel, easy to carry in pockets and book pages. Low weight will not increase extra burden during reading and outdoor carrying.
- ✅ Suitable for daily reading aid, optical teaching demonstration and various DIY optical projects. A practical accessory for students, optical enthusiasts and hobby makers.
- ✅ Made of high-quality optical grade PMMA, lightweight portable Fresnel lens with stable optical performance.
Technical Specifications
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