10 stop filter focus

Started Nov 19, 2012 | Questions thread
jkjond Veteran Member • Posts: 8,289
Re: 10 stop filter focus

primeshooter wrote:

Now I am aware of what is called focus shift due to spherical abberation when a lens is focused wide open. My question is, does it matter when I am stopping down to such tiny apertures? My results seem to be sharp most of the time at 100% on the subject which I am focusing. Unless the sand moves or something...

Your camera always focuses at max aperture then stops down to take the shot whether you have a filter mounted or not.

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UK wedding photographer in the Lake District
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