12-30-2011, 09:12 AM
[quote name='Dick England' timestamp='1325213387' post='14181']
The technique you advocate is of limited use. It might work consistently at f8, but suppose I want to shoot with my f1.4 lens at f1.4? The DOF of the image at f1.4 is so much smaller than that of the viewfinder-eye system that achieving focus by eye is like finding a needle in a haystack.
[/quote]
That is not really true, it does not matter that DOF, does it. The focal plane remains the same, and is sharper noticeably that the whole "DOF blah blah" may make you think. If I by view finder on my 450D van judge focus with macro stuff, then it is a breeze to do the same with a 35mm f1.4.
The technique you advocate is of limited use. It might work consistently at f8, but suppose I want to shoot with my f1.4 lens at f1.4? The DOF of the image at f1.4 is so much smaller than that of the viewfinder-eye system that achieving focus by eye is like finding a needle in a haystack.
[/quote]
That is not really true, it does not matter that DOF, does it. The focal plane remains the same, and is sharper noticeably that the whole "DOF blah blah" may make you think. If I by view finder on my 450D van judge focus with macro stuff, then it is a breeze to do the same with a 35mm f1.4.