Celestron may have a good reputation for telescopes, but these binoculars are pretty awful.They're mostly cheap plastic... more the kind of construction I'd expect for children's toy binoculars. The cover for the SD card slot and USB connection didn't fit properly, and kept popping out of place.I've been using binoculars for over 40 years, and have never before handled a pair that performed this poorly. Adjusting for the distance between my pupils was easy enough, and the diopter adjustment worked well. But nothing improved the problem of double images when focusing beyond about 25'.I can't really say how the camera works... I never got to try it! I certainly expected much better quality from Celestron.