BIF and manual focus

Started Feb 24, 2013 | Discussions thread
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Peter Heckert2
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BIF and manual focus
Feb 24, 2013

Hi, manual focus with tele lenses is rather tricky.

A fraction of a millimeter at the focus ring decides about sharp or not sharp, when the bird is far away. I find it impossible to do this. If I use the focus magnifier, I lose the subject (the bird)

Look here. This is a true pixel crop. The snowflakes are sharp, but the bird is not. So, the lens is sharp, but the bird is out of focus.

The lens is a Sigma 150-500 + Sigma 2x teleconverter.

How to do this?

Peter

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