Telescope focal length determines image magnification. Field of view (FOV) shows how much sky your telescope displays. FOV is calculated using telescope and camera/eyepiece specs. Match telescope FOV ...

One of the joys of hiking is the close observation of the natural beauty of the wilderness, and a good pair of hiking binoculars can help. High quality optics allow you to view the songbirds providing ...

OK, this question isn't about the usual subset of audio-visual topics we mostly see here. It's about things to enhance what you see with your eyes. I wear glasses, and have done since I was a teenager ...