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DA lenses on Full Frame: Test Shots thread
Posted By: falconeye, 07-07-2008, 02:50 PM

Hi everybody,

I would like to open up a thread dedicated to one topic:

DA lens on Full Frame: a sticky test shots thread.

This thread shall be dedicated to test shots of a DA lens mounted to a full frame body (e.g., a film camera body). By test shot, I mean shots dedicated to evaluate the performance. Shots of ordinary subjects aren't suitable to this task, normally, and should not be posted. So, these are the rules:
  • K mount lens dedicated to the APS-C form factor is used.
  • Image is taken full frame 36mm x 24mm.
  • Lens hood was removed.
  • And ideally, no filter is mounted.
  • The aperture used is specified (note that film cameras don't record EXIF...).
  • Sample image shows the entire field of view.
  • Sample image(s) show(s) corner, border and center performance at 10MP-100% (multiple crops, or single not-resized image).
  • The subject is such that resolution and vignetting at the borders can be compared to the center.
The idea behind this thread is obvious: To compile enough data to assess the spectrum of available lenses for a forthcoming full frame DSLR in K mount.

#################################################

Table of results as obtained in this thread (updated regularly):
SMC Pentax-DA primes...
SMC Pentax-DA zooms...
Sigma K mount DC...
  • Sigma 18-200mm f/3.5-6.3 DC: -
  • Sigma 10-20mm f/4-5.6 DC: - (below 14mm, Gooshin)
  • ...
Tamron K mount Di-II...
  • ...
Overall rating scale:
+++: no significant difference between APS-C and FF corners
++: difference but usable at full aperture with a small loss in corner IQ only
+: usable staring at f/4~f/5.6, with no or a small loss in corner IQ only
o: usable at f/11 or with big loss in corner IQ only
-: not usable


Last edited by falconeye; 07-20-2016 at 02:57 AM. Reason: Result table updated
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08-27-2016, 03:04 PM   #481
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QuoteOriginally posted by BarryE Quote
Rob, when you tried the 50-135 was there a smaller aperture where it became usable ? I'm thinking f5.6 or f8 and above, perhaps ...What were the corners & edges like ? Mushy ? I'm vaguely thinking that I might be able to pair the 50-135 with the d-fa 24-70 on a k-1 as a temporary measure while I decide if I should upgrade. Thanks.
Those test shots were all at f6.3, and the vignetting only gets worse the more you stop down. With minimal cropping it's just about ok at 135, but it vignettes badly the wider you go. Corners were a bit ropey, edges were just about passable at 135, but terrible at wider angles. I'd probably recommend selling it, and picking up a DFA100 WR to be honest. That lens is simply magical on the k-1 (better than the FA 135 f2.8), and is usually one that appears in Black Friday type discounts.

10-05-2016, 10:46 AM   #482
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If anyone has the K1 in Belgium, near Charleroi, we can test with the DA 18-135mm WR. Contact me
10-25-2016, 02:00 AM   #483
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QuoteOriginally posted by vankasteelj Quote
we can test with the DA 18-135mm WR
Will only work in crop mode, in FF the black circle is along the complete focal length.
03-28-2017, 01:52 PM   #484
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DA10-17mm on K1

Just as a confirmation, is it true that the DA 10-17mm at 10mm will work on a K1 with no vignetting only if the hood is shaved off...? Couldn't find a clear answer on that one. I do 360 full spherical panoramas and will maybe get a K1 soon. The alternative of course is getting a 17mm Tak or K mount...
Thanks

03-28-2017, 03:23 PM   #485
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QuoteOriginally posted by Rnovo Quote
Just as a confirmation, is it true that the DA 10-17mm at 10mm will work on a K1 with no vignetting only if the hood is shaved off...? Couldn't find a clear answer on that one. I do 360 full spherical panoramas and will maybe get a K1 soon. The alternative of course is getting a 17mm Tak or K mount...
Thanks
at 10mm it vignette a lot even without hood. I already tried on film
04-18-2017, 01:50 PM   #486
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Hi all,
Has anyone got more data on the DA 55-300 limitations?, I have got a P30T on the way and would like to try it if I can find where in the range it is not viable.
Thanks!
04-18-2017, 08:33 PM   #487
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QuoteOriginally posted by Kevin B123 Quote
Hi all,
Has anyone got more data on the DA 55-300 limitations?, I have got a P30T on the way and would like to try it if I can find where in the range it is not viable.
Thanks!
Since no one has responded yet..

On my K-1 with the HD 55-300mm WR I just tried it indoors (so low light since it is night time here). It seems to vignette hard from 60mm to around 150mm. That is to say, at 55mm it seems ok with minimal vignetting in the extreme corners but by the time the lens is cycled to around 60mm the vignette is no longer minimal it is a hard black circle that increases in size (to around a quarter of the frame) through to around 150mm where it softly dissipates.

So it doesn't seem the whole focal range is bad. Yet I also cannot account for the quality of the edges and corners either even when the vignetting is lighter. Too dark inside for me to tell.
04-19-2017, 12:52 AM   #488
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QuoteOriginally posted by vankasteelj Quote
If anyone has the K1 in Belgium, near Charleroi, we can test with the DA 18-135mm WR. Contact me
This is my stardard lens for the K-5 and initially I wanted to use it with my K-1. But I only used it once or twice since I wasn't happy with it. It's simply an extreme DA-example with narrow image circle. In the end I bought the DFA28-105 instead. Similar feeling but great results - the right choice for me.

QuoteOriginally posted by mee Quote
On my K-1 with the HD 55-300mm WR I just tried it indoors (so low light since it is night time here). It seems to vignette hard from 60mm to around 150mm. That is to say, at 55mm it seems ok
Seems to be similar to the DA55-300PLM. My observation for this lens classified by open aperture:

f/4.5: 55 - 63 - 70 - 78 - 88 - 98 - 108 -120 - 135 mm => dark corners up to dark image circle areas and back - very bad in the middle range, widely usable in FF Square mode, allows crops bigger than APSC area
f/5.6: 150 - 170 - 190 - 210 - 230 - 260 mm => FF compatible, existing corner vignetting can be mastered
f/6.3: 300 mm => dark corners, usable in FF Square mode, allows crops a little bit smaller than FF area

04-19-2017, 04:59 AM   #489
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mee & acoufap,
Thanks for your time on this. It's good to know even this new glass can be used within those limitations. f5.6 between 150 and 260 is easy to remember and will do me fine. Thanks again .
04-22-2017, 09:44 AM   #490
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QuoteOriginally posted by Kevin B123 Quote
mee & acoufap,
Thanks for your time on this. It's good to know even this new glass can be used within those limitations. f5.6 between 150 and 260 is easy to remember and will do me fine. Thanks again .
It is raining here.. steel grey sky. So I took the opportunity to take a couple of shots with the HD 55-300 WR on the K-1 in FF mode.

One at 55mm and one at 300mm. Both at f/8

In the bright of day I can now see that this lens vignettes pretty strongly at 300mm. Or, at least, stronger than I initially thought.
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04-22-2017, 12:21 PM   #491
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Thanks again. I will be using it on film, for prints 300 mm would be pretty bad from your example but scans can of course be cropped to suit. Initially I'll have my film printed and scanned at a lab so I will stay within the range 150-260 mm and probably at f8. I like that all my lenses are backward compatible on this film body (P30T) and the first roll I will try all of them that can match the film size .
05-10-2017, 01:14 AM   #492
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Hello,

Has anyone tried the DA*55 with the DA TC ?

Has anyone tried the DA*50-135 with the DA TC ?

Thanks !
06-02-2017, 11:06 AM   #493
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QuoteOriginally posted by aurele Quote
Hello,

Has anyone tried the DA*55 with the DA TC ?

Has anyone tried the DA*50-135 with the DA TC ?

Thanks !
I thought the DA*55 worked FF natively.
06-02-2017, 01:26 PM - 1 Like   #494
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QuoteOriginally posted by klkitchens Quote
I thought the DA*55 worked FF natively.
Indeed, but stil wondering about the Da+TC
06-13-2017, 02:25 PM   #495
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I just realized I forgot to post this here.

It's the very carefully controlled and processed series of before and after vignette shots of the DA* 60-250mm F4 ED [IF] SDM rear baffle mod. Hopefully it's the definitive series for anyone with questions.

Also... not shown is that I also did another series with no rear baffle at all. Those results were indistinguishable from the modded configuration so I didn't include them.

As far as sharpness and aberration control goes, it does deteriorate a little (especially CA) at the edges, but overall, perfectly usable.
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