How bad can a CPL screw up your IQ

Started 7 months ago | Discussions thread
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Ron Evers
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How bad can a CPL screw up your IQ
7 months ago

I was out one day & came across a derelict  barn to shoot.  There were nice puffy clouds in a blue sky so I thought I would use a CPL to enhance the sky.  What is wrong here, I cannot get a sharp focus on the barn??  After puzzling for a bit I removed the filter & then perfect focus.  I put away the Marumi P.L. & forgot about it until today & decided to see if I could duplicate what happened.

Left auto focus no filter - Centre auto focus with filter - Right manual focus with filter.

Click view original please.

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The wood is clear between the knots.

 Ron Evers's gear list:Ron Evers's gear list
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