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16-85 vs 18-135 on K3 Target Board

Started Aug 20, 2015 | Discussions thread
jamesm007 Veteran Member • Posts: 5,820
Re: 16-85 vs 18-135 on K3 Target Board

I like the board. I have one I made by reading an artical how to do it. Over the years I have used it to set up BF/FF to test lens. I am always changing what's on it.

Sounds like your a real optical person and not a just know what a lens is guy like me. But I do know enough to like how you went to the edges but not the deep corners. A lens that can keep the deep corners tack sharp is a prime or very good lens. For most lens you don't want to see the deep corners. They don't count too much in pics anyways.

 jamesm007's gear list:jamesm007's gear list
Pentax K20D Pentax K-5 Pentax K-3 Sigma 10-20mm F4-5.6 EX DC HSM Tamron SP AF 17-50mm F/2.8 XR Di II LD Aspherical (IF) +12 more
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