I was traveling recently, and found myself making photos of wildlife in low light with my Nikon Z50 + 50-250mm lens, handheld. Not ideal, but I’m not ready to invest in a fast long lens for something I do very infrequently.
But while I was shooting with my mirrorless, my wife was taking shots with her smartphone camera through a pair of binoculars, and the results are surprisingly good!
This got me wondering - how do binocular lenses compare to camera lens? What would be the effective aperture and focal length of a good pair of 7x42 binos?
Clearly wider than my F6.3 250mm, but I think probably not far from that focal length?
Just curious if anyone knows more about this.