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03-30-2011, 12:32 PM   #46
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Dan,
Thanks a lot for this review, I really appreciate it. Must have it tagged... or even saved locally.

Zig

12-05-2013, 06:55 AM   #47
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This lens is great, I've had one for my Pentax film bodies for more than a year and have used it quite a lot. I'm on my way giving up on Pentax though as there's no FF in sight, and go to Nikon instead, so I am about to sell this (along with the rest of my Pentax gear) and get a Nikon version instead, it's definitely a lens to have in the toolbox no matter what system, it wont get dusty….

12-05-2013, 08:31 AM   #48
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Near focus and bokeh seem close enough to me.
The Ultron was a tempting buy for me, but with the DA40XS being far cheaper and AF, I went for the latter (I also have the FA43ltd)

I also find that the DA40XS is weak at infinity. (as did the findings here with the 40ltd)

The 43ltd, is the stronger lens over the DA40XS certainly.
Super sharp when stopped down a stop and up to f8.
Strong from MFD to infinity.
12-05-2013, 08:34 AM   #49
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Ha, so many tests! But both lenses are pretty great. The Ultron has the advantage of being f2.0 (wish my DA 40mm XS were f2.0!) and good for MF. The DA 40mm has full automation and fast AF (and software correction profiles).
From these tests it seems that the Ultron might be slightly better overall, but the DA 40mm is so good that it will only rarely be noticeable.

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