- Diopter Power: 7
- Focal Length: 6"
- Lens Size: 2-1/2"
![]() | 2.5'' Round Magnifier Other items from Donegan Optical Company LIGHTWEIGHT & ECONOMICALLY PRICED READER. Quality lightweight acrylic lenses produced to high ophthalmic standards. Have durable ABS plastic handles in attractive color. Designed for comfortable use in either hand. All are attractively packaged and make ideal gifts. |