Forgot Password
Pentax Camera Forums Home

Show Printable Version Search this Thread
02-15-2008, 07:05 PM   #1
Veteran Member
heatherslightbox's Avatar

Join Date: Nov 2007
Location: Gainesville, FL
Photos: Gallery
Posts: 2,595
DA21 focusing issues?

At this point, my next major lens purchase is going to be the 21. When I saw the following thread on the DPReview Pentax forum, I got a bit concerned and started wondering whether the 21 would be a good choice--

DA 21 focussing error K10D: Pentax SLR Talk Forum: Digital Photography Review

Is this a big enough deal that I should consider something else for WA?


02-15-2008, 07:50 PM   #2
Veteran Member
creampuff's Avatar

Join Date: May 2007
Location: Singapore
Photos: Gallery
Posts: 3,955
Common issue with the DA 21. If the lens exhibits slight front or back focusing, a simple adjustment of the focus in debug mode and the images will be focused correctly. Had the debug mode demonstrated to me on my K100D. It just took a couple of seconds. Perhaps that's why I'm not so hot with some of the DA* primes.

Last edited by creampuff; 02-15-2008 at 07:57 PM. Reason: typo
02-15-2008, 08:05 PM   #3
Senior Member
MikeH's Avatar

Join Date: Sep 2006
Location: Edmonton, Alberta
Photos: Albums
Posts: 273
My view is that many DPReview frequenters are overly sensitive. Either I've never had a back/front focussing lens, or it hasn't been a problem of great enough scale to notice. I own the DA21 and have no problems. Great lens. My most used.
02-15-2008, 08:29 PM   #4
Veteran Member
Finn's Avatar

Join Date: Feb 2007
Location: Phoenix
Photos: Gallery
Posts: 1,056
I've heard that too, but can it really be that big a problem when a 21mm lens has such a huge depth of field? Wide open and close to the subject might be a problem, but under most other circumstances?

02-15-2008, 09:14 PM   #5
Veteran Member
heatherslightbox's Avatar

Join Date: Nov 2007
Location: Gainesville, FL
Photos: Gallery
Posts: 2,595
Original Poster
How do you get to the Debug Mode on the k10?

Thanks for all the positive responses--I feel better now.
Basically, I've narrowed down my choices for my next lens purchase(s) to the following:
--Tamron 17-50mm
--DA21 + Tamron 28-75

The only problems I have with the 17-50 are that it's digital only, so assuming that I get a film body down the road, it wouldn't work right with it (although the 43 and 70-210 would and I could also pick up a wider prime like the 28 at that point).

The only real problem that I would have with the 21 + 28-75 combination would be that both lenses would be more expensive than just 1, but I could use the 28-75 on a film body. The good part is that at least I don't have to buy them both at the same time. Since I have both the 18-55 and 28-70 (Sigma) for the time being, I could buy the 21 and wait on the 28-75 until I had enough money saved up once again. If I can have that money saved up before my birthday in July--then I'll go ahead and get the lens. If I don't, then I usually get $200 in birthday money, which could go towards it.

Another idea I had for the 21 + 28-75 combination is that if I really wanted to travel light, I could always leave the 28-75 at home and just take the 21, 43, and 70-210. If I wanted to travel really really light, the thought of picking up the 70Ltd. has crossed my mind.

It seems like my LBA is getting more and more expensive...

Well, I'll quit rambling and go get a shower.

  • Submit Thread to Facebook Facebook
  • Submit Thread to Twitter Twitter
  • Submit Thread to Digg Digg
Tags - Make this thread easier to find by adding keywords to it!
forum, k-mount, pentax, pentax lens, slr lens
Thread Tools Search this Thread
Search this Thread:

Advanced Search

Similar Threads
Thread Thread Starter Forum Replies Last Post
Focusing Issues with the K10d quattro Pentax DSLR Discussion 23 05-03-2010 01:47 PM
DA21 plus K-X - focusing OK? timo Pentax SLR Lens Discussion 8 03-31-2010 08:00 AM
Focusing issues with AF Alex2007 Photographic Technique 11 04-16-2009 05:06 AM
FA 28mm focusing issues pkim87 Pentax SLR Lens Discussion 1 07-04-2008 03:35 AM
Possible Front Focusing Issues...Help? TFTM Pentax SLR Lens Discussion 7 09-17-2007 10:00 AM

All times are GMT -7. The time now is 07:29 PM. | See also:, part of our network of photo forums!
  • Red (Default)
  • Green
  • Gray
  • Dark
  • Dark Yellow
  • Dark Blue
  • Old Red
  • Old Green
  • Old Gray
  • Dial-Up Style
Hello! It's great to see you back on the forum! Have you considered joining the community?
Creating a FREE ACCOUNT takes under a minute, removes ads, and lets you post! [Dismiss]