Forgot Password
Pentax Camera Forums Home
 

Reply
Show Printable Version Search this Thread
07-06-2009, 05:45 AM   #1
New Member




Join Date: Jul 2009
Location: Victoria
Photos: Gallery
Posts: 15
da* lens rubbish

has anyone know why the da* lenses dont focus properly
I have found that cheap sigma lenses out perform the most expensive pentax lenses. I keep getting out of focus shots which never happened with sigma lenses

07-06-2009, 05:47 AM   #2
Veteran Member
Jasvox's Avatar

Join Date: Oct 2007
Location: Melbourne, Australia
Posts: 3,110
Simple solution, stick with what works for you (or with what you know how to operate correctly).

Jason
07-06-2009, 05:58 AM   #3
New Member




Join Date: Jul 2009
Location: Victoria
Photos: Gallery
Posts: 15
Original Poster
yea thanks

i take hundreds of pics every week i am a photo journalist and run 5 pentax cameras with lenses attached to them all these lenses dont come up to the mark and they should. its got me beat. so was just wondering why that was.
07-06-2009, 06:29 AM   #4
Veteran Member




Join Date: Jan 2008
Location: Ste-Anne des Plaines, Qc., Canada
Posts: 2,014
It would help if we could see some pictures with EXIF. Maybe your camera/lens combo has a front or back focus problem. It can be solved on the K20D or K200D with focus adjustment. Or you might have a defective lens. If that is the case, and you didn't wait for the warranty to expire, you could have the lens fixed or exchanged. My DA* lenses are stellar performers.

07-06-2009, 06:47 AM   #5
Veteran Member
ytterbium's Avatar

Join Date: Jan 2008
Posts: 1,076
How do you perform a focus adjustment with k200d?
07-06-2009, 07:03 AM   #6
New Member




Join Date: Jul 2009
Location: Victoria
Photos: Gallery
Posts: 15
Original Poster
yes how do you do that

I have 5 pentax cameras and just bought 2 da* lenses and they r both the same and 3 cameras are brand new. even on static objects the focus seems to vary. Has me beat this one and i take thousands of pics each month
07-06-2009, 07:06 AM   #7
Pentaxian
Wheatfield's Avatar

Join Date: Apr 2008
Location: The wheatfields of Canada
Posts: 10,156
QuoteOriginally posted by ranters Quote
has anyone know why the da* lenses dont focus properly
I have found that cheap sigma lenses out perform the most expensive pentax lenses. I keep getting out of focus shots which never happened with sigma lenses
My own experience with the DA* lenses (I have two) is that they both required slight micro adjustment to bring them into perfect focus, but out of the box they were acceptable.
I've found over time that most camera problems are user driven, not equipment driven.
I can't speak to your experience with Stigma, since you couldn't pay me enough to put one of their lenses onto my camera.
07-06-2009, 07:09 AM   #8
Veteran Member




Join Date: Sep 2008
Location: New Jersey, USA
Posts: 337
QuoteOriginally posted by ytterbium Quote
How do you perform a focus adjustment with k200d?

You can't.

As to the OP's issue, which DA* lenses are you referring to? My DA* 50-135 has had an instance where it stopped focusing altogether (had to clean the contacts), but other than that, it takes beautiful photos with my K200D. So not sure what the real problem is in your case.

07-06-2009, 07:19 AM   #9
Veteran Member
Pentaxor's Avatar

Join Date: May 2009
Location: Vancouver, B.C.
Photos: Gallery
Posts: 6,513
welcome to the board. I hope you are not here just for the sake of trolling around. since this is you first rant.... I meant post in the forums. not to mention that you made a general statement against the recent Pentax lenses, DA*s in particular. I'm a bit skeptic to what your real intent since you said that cheap Sigma glasses are better in general, which I found untrue. maybe it's your preference but it doesn't make it any better unless they are an EX, HSM and APO type Sigmas which aren't cheap.
07-06-2009, 07:27 AM   #10
Ari
Site Supporter
Ari's Avatar

Join Date: Feb 2007
Location: Freehold, NJ
Photos: Gallery | Albums
Posts: 794
I have two DA* lenses, and have never had any problems with either of them out of the box. Pentax glass (in my humble opinion) is the best out there. I assume (which is always dangerous) that that is why we shoot with Pentax bodies. You may, as others have suggested above, look at how you are shooting. Welcome to this friendly and helpful forum. Specific questions and requests for help almost always get answered by the great people here.
07-06-2009, 07:46 AM   #11
Loyal Site Supporter
Canada_Rockies's Avatar

Join Date: Nov 2007
Location: Sparwood, BC, Canada
Photos: Gallery | Albums
Posts: 9,534
I have two DA* lenses, as does Ari. They are both sharp. They both work just fine on my K10D. My 50-135 did have some AF failures - not out of focus, just would not focus. Contact cleaning solved the problem. The 16-50 has never given me a problem. Never.
07-06-2009, 07:51 AM   #12
Veteran Member
RawheaD's Avatar

Join Date: Dec 2008
Location: MA, USA
Photos: Gallery
Posts: 831
QuoteOriginally posted by ranters Quote
yes how do you do that

I have 5 pentax cameras and just bought 2 da* lenses and they r both the same and 3 cameras are brand new. even on static objects the focus seems to vary. Has me beat this one and i take thousands of pics each month

Funny, you think Pentax lenses suck, but you're so invested in them to have 5 of their cameras? I'm assuming five of their DSLRs (as DA* lenses can/should only be used with them), and certainly 3 of the brand new ones are DSLRs. 3 brand new Pentax DSLRs??

Which ones, the K7, K20D and K-m??



My conclusion-> troll.
07-06-2009, 08:16 AM   #13
Veteran Member




Join Date: Jul 2008
Location: Sweden, Umea
Posts: 871
Ranters... good name
07-06-2009, 09:59 AM   #14
Senior Moderator
Loyal Site Supporter
Parallax's Avatar

Join Date: Apr 2008
Location: South Dakota
Photos: Gallery
Posts: 15,613
Sniff....sniff.....sniff..... Does anybody else smell something funny under this bridge?
07-06-2009, 09:59 AM   #15
Site Supporter
stevebrot's Avatar

Join Date: Mar 2007
Location: Vancouver (USA)
Photos: Gallery | Albums
Posts: 27,417
Ranters,

Welcome to the forum.

I can appreciate the inflammatory tone of your post. No one wants to plunk down big bucks for the "best" lenses and not get the results they are expecting. As a result, I am going to take you seriously and assume that you have a real issue that the users here might help to solve. Whether that problem is a result of bad technology or user error is not important. Can you help us help you? This information would be useful:
  • Which lenses are you having problems with?
  • On which cameras (you have five)?
  • AF only or both AF and manual focus?
  • How have you determined that the problem is focus?
  • Have you tested your lenses in a controlled setting (stationary subject, tripod, 2s shutter delay)?
With any luck, we can help you get to the bottom of your problem and help you get your money's worth from your lenses.

Steve
Reply

Bookmarks
  • 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!
da*, da* lens, focus, k-mount, lenses, pentax lens, sigma, slr lens
Thread Tools Search this Thread
Search this Thread:

Advanced Search


Similar Threads
Thread Thread Starter Forum Replies Last Post
These shots are rubbish Damn Brit Post Your Photos! 30 08-06-2009 12:16 AM



All times are GMT -7. The time now is 07:22 PM. | See also: NikonForums.com, CanonForums.com 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?
register
Creating a FREE ACCOUNT takes under a minute, removes ads, and lets you post! [Dismiss]
Top