Pentax UP Bincoulars
The Pentax UP series includes a wide range of reverse porro prism binoculars. Sizes range from 8x21 to 10x25, and an 8-16x21 zoom. The 25mm models come either with or without waterproofing. The 21mm models are available in black, navy, and pink. The zoom model is available in black, brown, and green.