105mm polarizer wanted: cirular or linear?

Started Nov 13, 2012 | Discussions thread
Leonard Shepherd
Leonard Shepherd Forum Pro • Posts: 13,606
Re: Are you prepared to compromise?

DimensionSeven wrote:

I mean AF accuracy, picture quality, polarization effect, etc?

If the linear has good coatings, optically it can match a circular.

You mention a D7000 - check out the filter section on page 280 (my version) of the instruction book. This gives the "official" Nikon guidance.

As is being pointed out a linear sometimes causes AF and exposure issues - though I tend to agree with the proposition often decent AF and exposure is possible with a linear.

Nikon suggest using a 2 stop filter can cause matrix metering issues - my experience is occasionally they can - checking the histogram helps resolve this.

If you decide to work from a tripod, use manual focus and check the histogram any linear filter errors are easily resolved.

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Leonard Shepherd
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