Many experienced hunters and birdwatchers choose binoculars with objective sizes of 35 to 39mm because they provide plenty of light to see game, even on overcast days. These 35-39mm binoculars offer great performance for their size, and they won't add excessive bulk to get in your way. When space and weight are important but you can't live with lower magnification and darker images you should go with these mid-sized binoculars. We have the top brands, from Bushnell and Nikon to Steiner and Zeiss, so you needn't worry about quality. You'll get a great image!