Porro Binoculars 25x100 on big view:
25x magnification and porro prism;
The big 100 mm objective lens enables maximum image brightness in low-light and long-range conditions;
With sharp focus across the field of view, the long eye relief is very convenient for eyeglass wearers;
Nitrogen filled and is water-resistant.
The Specifications of Porro Binoculars 25x100 on big view as follows：
Obj. Lens Dia.
Type of Prism
BaK4, Porro prism
Exit Pupil Diameter.
Exit Pupil Dist.
Min. Focal Length
Filed of View
The Product Size
Mayvin Optical Instrument Co., Ltd.
Add:F9, Shilong Rd, Zhonghao Industrial Estate, Chenggong District, Kunming, Yunnan Province, China