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11-28-2014, 02:33 PM   #661
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I opened a thread to deal with field curvature of DA15... So as to not polute anymore this thread. For thoses interrested, it is here:https://www.pentaxforums.com/forums/10-pentax-slr-lens-discussion/280573-da15...ml#post3047732

I'd be glad if one explain me how I can avoid the issue ! Feature or not, it is anoying in some circonstances like architecture.

11-28-2014, 02:55 PM   #662
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One more @ f/8 and iso 800.

11-28-2014, 03:18 PM   #663
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QuoteOriginally posted by bernhardn Quote
One more @ f/8 and iso 800.
Was that taken with the 16-85?
11-28-2014, 03:28 PM   #664
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QuoteOriginally posted by bernhardn Quote
One more @ f/8 and iso 800.
I don't know if it's your post processing, but the two images you posted got quite a lot of "snap" to them. They look great.

11-28-2014, 03:38 PM   #665
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QuoteOriginally posted by FantasticMrFox Quote
Was that taken with the 16-85?
Yes! i just turned down the highlights!
11-28-2014, 03:56 PM   #666
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QuoteOriginally posted by bernhardn Quote
Yes! i just turned down the highlights!
Nice - wasn't quite sure because the thread temporarily derailed into some field curvature discussion with sample pictures of other lenses.

I'm thinking that it'd be the perfect upgrade from my 18-55 WR kit, because I spend a lot of time in adverse conditions (WR), like to shoot landscapes and don't have a dedicated WA yet (16 mm) and would like some silent, internal focussing.

Have you used the lens in the field yet? What are your first impressions? Is the image quality significantly better compared to the 18-135?
11-28-2014, 04:51 PM   #667
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QuoteOriginally posted by bernhardn Quote
One more @ f/8 and iso 800.
So it's OK at 85mm. What is the wide end like ?
11-29-2014, 02:41 AM   #668
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I'll try to make some pictures outside today.

11-29-2014, 03:12 AM   #669
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Please post them and give us your review.
11-29-2014, 03:53 PM   #670
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More sample pictures from a German user who purchased the lens today:

Objektiv HD PENTAX-DA 16-85mm F3.5-5.6ED DC WR - DSLR-Forum

If anyone needs a translation of specific parts, I'd be glad to help
11-29-2014, 04:05 PM   #671
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QuoteOriginally posted by FantasticMrFox Quote
More sample pictures from a German user who purchased the lens today:

Objektiv HD PENTAX-DA 16-85mm F3.5-5.6ED DC WR - DSLR-Forum

If anyone needs a translation of specific parts, I'd be glad to help
Thank you for the link. The apparent absence of lateral chromatic aberration is a blessing. I am copying hereunder the maximal aperture according to the focal length:
  • 16mm - 20mm = f/3.5
  • 21mm - 30mm = f/4
  • 31mm - 67mm = f/4.5
  • 68mm - 85mm = f/5.6
11-29-2014, 04:17 PM   #672
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QuoteOriginally posted by FantasticMrFox Quote
More sample pictures from a German user who purchased the lens today:

Objektiv HD PENTAX-DA 16-85mm F3.5-5.6ED DC WR - DSLR-Forum
The skewed vignetting on FF,
especially towards the 85mm end,
suggests there might be some decentering.
11-29-2014, 07:14 PM   #673
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With all this talk about decentering, how do you guys deal with it? Do you increase the aperture to have a better depth of field?
11-29-2014, 10:11 PM   #674
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QuoteOriginally posted by FantasticMrFox Quote
More sample pictures from a German user who purchased the lens today:
Hmmh, "corners not impressive", "not for pixel peepers", and "fine as a vacation lens" does not sound very confidence inspiring.
11-29-2014, 10:13 PM   #675
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QuoteOriginally posted by lytrytyr Quote
The skewed vignetting on FF,
especially towards the 85mm end,
suggests there might be some decentering.
The text explains that the PK-EOS adapter rotates the lens 45 degrees and that there is a rectangular opening at the lens that hence is not oriented correctly anymore.

So no indication of decentering, but an artefact of the adapter.
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