Before I ask the question I am about to ask I want to mention that I am quite familiar with f-stops and iris size. I am a long time amateur photographer and have used Canon EOS when there was no digital. So I get the whole thing about iris size relating to depth of field.
So here is my question - why do my military surplus Fuji 7x50 have such incredible depth of field? My friend whom is a big time hunter brought over a pair of older Pentax 7x35 (metal with black leather) and a Leica 8x42 that was about 5 years old I guess (though I really like those Leicas ). We were playing in the yard with them and with the 7x50s I didnt have to adjust them at all to stay sharp while with the Pentax and Leica you had to tweak them at times.
Anyway what I was surprised was that my $120 Fuji's had better depth of field than either. I understand that newer binocs have better lens coatings and all that. My 7x50s have a giant exit pupil (you can see in the dark never mind at twilight) so they shouldnt have such incredible depth of field.
Anyone want to explain it to me?
So here is my question - why do my military surplus Fuji 7x50 have such incredible depth of field? My friend whom is a big time hunter brought over a pair of older Pentax 7x35 (metal with black leather) and a Leica 8x42 that was about 5 years old I guess (though I really like those Leicas ). We were playing in the yard with them and with the 7x50s I didnt have to adjust them at all to stay sharp while with the Pentax and Leica you had to tweak them at times.
Anyway what I was surprised was that my $120 Fuji's had better depth of field than either. I understand that newer binocs have better lens coatings and all that. My 7x50s have a giant exit pupil (you can see in the dark never mind at twilight) so they shouldnt have such incredible depth of field.
Anyone want to explain it to me?