I came across a Carl Zeiss Jena pair of binoculars the other day they were 7x40 B GA. I was a bit surprised at how good they were. Clearly ex military from the second world war I guess, they had no focussing as they were in focus at all times. I've not come across this type before. The picture from close up to a very long way away was sharp and clear.
Has anyone had any experience of these and what do you call this type of binocular?
Has anyone had any experience of these and what do you call this type of binocular?