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02-16-2013, 08:16 PM   #1
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Pentax 560mm full-frame compatability test

The results are in: DA 560mm F5.6 - is it a Full-frame lens? - Pentax Camera News & Rumors -

Wide-open sky photo:


Guess it wasn't designed will full-frame in mind: a bit of a bummer for me personally, but not really relevant from a (Pentax) consumer standpoint I'd say.

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02-17-2013, 01:35 AM   #2

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Hard to believe Pentax would do this (investing the time and money to create an already low-sales-volume lens that won't work well on FF) but at least it explains the straightforward DA branding!
02-17-2013, 12:15 PM   #3
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My take, for what it's worth...I'd say it certainly ensures Pentax will force DA lenses into a cropped mode if mounted to a full frame camera, even if they can cover the full 24 x 36mm area.

It would be a dream come true to be proven wrong (DA* 55, lookin at you...) but the DA 560 is their flagship now.
02-20-2013, 03:28 PM   #4
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It makes quite some difference in lens design whether you want to cover full frame or APS-C - especially for wide angle and very long tele lenses. Vignetting here shows obviously that the Sigma 4.5/500mm is the more interesting lens, again. I am wondering more and more who will actually buy this lens?


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