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Forum: Pentax SLR Lens Discussion
11-10-2017, 11:37 AM
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Only thing you're missing for your KP is a DFA100WR...
(Now I've gone and done it)
:)
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Forum: Pentax SLR Lens Discussion
11-05-2017, 09:11 AM
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Essentially he's arguing (with backup evidence) that 2.8 on a full-frame lens ends up as something lower than that on a crop sensor since much of the light-gathering ability is wasted, unusable. I'm really waiting for one of our lens experts here to comment. I agree with some of the other posters that on the surface it doesn't sound right, but Northrup is not exactly a newbie either.
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Forum: Pentax SLR Lens Discussion
11-05-2017, 08:41 AM
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Tony Northrup posted a video a while back that I hadn't watched until just now. He makes a very reasoned argument against using full-frame lenses on crop sensors (with the exception of wildlife). He only mentions Canikon's but he is correct? This is the first I've heard of it, and if so should we Pentax users be opting for lenses designed with our crop sensors in mind rather than some of the full-frame glass? FWIW I have a lot of full-frame compatible glass myself.
Youtu.be
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src="https://www.youtube.com/embed/YDbUIfB5YUc?controls=1" allowfullscreen>
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