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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
Views: 313,104
10-06-2013, 05:43 AM   #271
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QuoteOriginally posted by robthebloke Quote
I've just got another roll of film back from thee developers using the DA 50mm f1.8, and I think I've figured out the cause of the distortion. Be careful when using this lens on fullframe - it focuses beyond infinity - which is the cause of the nastiness seen above. If you keep the focussing within limits, it's a fine lens for film.
Many AF lens can do that, the DA35 /2.4 can do it to. Be careful then.

10-06-2013, 05:51 AM   #272
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Well, the first time around I'd used a P30T, obviously just set it at infinity for the shot (without thinking), and got something pretty grim coming back from the developers! Spotted the problem quite quickly on the Z1-p, and ran a little test to recreate a similar shot to the one above. Beyond infinity, the thing looks shite. At infinity, no problems at all. Just thought I'd add the information here so that people realise they can ignore my crappy shot above. The lens is fine for film....
01-29-2014, 09:21 AM   #273
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Does the focusing beyond infinity "feature" also appear when autofocusing or only when doing it manually?
01-29-2014, 09:46 AM   #274
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Only when focusing manually.

01-29-2014, 09:49 AM   #275
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Thanks, thats good to know
01-29-2014, 10:28 AM   #276
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QuoteOriginally posted by Jean Poitiers Quote
Bonjour,
Just FYI that I noticed ...
Here's the link : Pentax smc DA 50mm f/1.8 Lens 22177 B&H Photo Video
Quote :
" ... Product Highlights
Very Fast f/1.8 Maximum Aperture
...
For APS-C & Full-Frame K-Mount Cameras ..." (Emphasis added & end quote) Salut, J

EDIT of 29 Jan. 2014 ... went back to this link and there's been a change ... "Full Frame" has been removed ... wonder why?! J
Just FYI ... that B&H removed the "Full Frame" citation in their earlier ad ... J
02-06-2014, 04:31 AM   #277
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QuoteQuote:
Last edited by falconeye; 08-12-2012 at 04:58 AM. Reason: Result table updated

That list in openings post ... how usefull is it still ?

Or do i need to read thru the whole topic to find out if a lens is suitable for FF ?
02-06-2014, 06:33 AM   #278
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Tried my Pentax DA 50mm 1.8 on Pz1-p for the first time. DA 50mm definitely has no problem with FF. Both of these shots were taken using DA 50mm.







02-06-2014, 06:44 AM   #279
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QuoteOriginally posted by azerak Quote
Tried my Pentax DA 50mm 1.8 on Pz1-p for the first time. DA 50mm definitely has no problem with FF. Both of these shots were taken using DA 50mm.

Thanks a lot for your shots and input ... I am probably going to acquire this DA ... Salut, J
02-06-2014, 04:37 PM - 1 Like   #280
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Original Poster
QuoteOriginally posted by Thoran Quote
That list in openings post ... how usefull is it still ?

Or do i need to read thru the whole topic to find out if a lens is suitable for FF ?
I tried to update the opening post bzt for reasons you have to ask Adam, PF at some day refused to let me edit the opening post. So, I am sorry but yes, you have to read past the first year or so ...
02-13-2014, 03:29 AM   #281
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Slightly only off topic

QuoteOriginally posted by falconeye Quote
note that film cameras don't record EXIF...
Some of them do, or did, to be exact. Well, sort of. I had this Canon 1V HS, and it recorded all them shot details, like shutter speed, aperture value, shot time, lens used, ISO etc, in its memory. One was then able to download them onto a computer and allocate shot details to relevant photographs. Brilliant idea, by the way, as for those times (early 2000s)
02-13-2014, 05:38 AM - 1 Like   #282
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Sigma 8-16mm f/4.5-5.6 @ 16mm, f/11 on Kodak E100GX (uncropped)



Rather severe fall off at the edges, but usable.
02-13-2014, 09:18 AM   #283
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I just wanted to point out to some wonderful pictures taken with the DA 35mm 2.4 on film, from the "Plastic Fantastic Club" thread:

https://www.pentaxforums.com/forums/122-lens-clubs/196639-da35-f2-4-plastic-f...ml#post2692936

https://www.pentaxforums.com/forums/122-lens-clubs/196639-da35-f2-4-plastic-f...ml#post2693044

https://www.pentaxforums.com/forums/122-lens-clubs/196639-da35-f2-4-plastic-f...ml#post2693080

All those pictures are gorgeous. Fantastic indeed...
02-13-2014, 09:55 AM - 1 Like   #284
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QuoteOriginally posted by ChristianRock Quote
I just wanted to point out to some wonderful pictures taken with the DA 35mm 2.4 on film, from the "Plastic Fantastic Club" thread:

All those pictures are gorgeous. Fantastic indeed...
Yes ... Pablom put up some great captures ... "liked" & very encouraging! J
02-13-2014, 10:38 AM   #285
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QuoteOriginally posted by Jean Poitiers Quote
Yes ... Pablom put up some great captures ... "liked" & very encouraging! J
The first one from pidosphere is a gem as well!
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