Hi, I've been wondering about my RB67 50mmC lens, I find that it for the majority of photos, I am have the bellows right in, and only for objects closer than 1m do I have to start adjusting the bellows out, it also seems to be able to focus down to about 100mm from a subject and still be pin sharp. Even at f4.5, it still has plenty of DOF, and I can only make us of limiting DOF in close-ups. I'm not saying its wrong, it certainly makes landscapes easy, at f32, everything is in focus, not need to check.
Is this a natural thing for a lens of this nature, or did the previous owner adjust/modify something to get this effect.
The reson I'm asking is that I regularly use a limited DOF for effect in figure studies, and whilst I find the 50mm lens is very useful in really elongating the legs when shooting at the correct angle, everything in the frame stays sharp, whilst what I really want is a selected amount of focus. Compared to the 90mm C lens and 180mm C I can limit the focus planes and my favorite 250mm lens were I can be very careful with the limited DOF, I can get small parts of the body pin sharp whilst bluring the rest.
Iain
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