10-30-2011, 01:41 PM
[quote name='Alexander ' timestamp='1319851523' post='12557']
Have you considered that the camera might be at fault for some of your focus problems? I mean since it happens to so many of your lenses. I have the K-5 with a 50-135mm (which I owned before, sold, traded back later against the 60-250mm+money to get f/2.8 again), 16-50mm and had the 60-250mm before, and I don't have any problems like this. I had a problem with the 16-50mm (which is the second one of these lenses I've owned, sold the first due to finances, it did not have these problems), but I sent it in for a fix, and now it's good. They also worked as they should on my K-x and K10D.
I say this cause it seems odd that you have problem with so many lenses, that it might be the camera that is at fault, or maybe somewhat at fault.
[/quote]
Yes, it has occured to me and that's why I sent it back for an AF check-up. Pentax is not present in Switzerland, but they use a 3rd party company (it's only a single guy!), to deal with repairs and revisions. Originally my DA* 50-135 would never be sharp wide-open even with micro adjustments. So I contacted the guy describing exactly my issues. He asked me to send the DA* 50-135. I did. He said he fixed it. When I got it back, it was better: but now it's either sharp at 50 or 135, but not both. I told him and he asked me to send the body, which is what I did. Now that it's back, I encounter exactly the same issue. No change whatsoever. See, this guy is the only guy dealing with Pentax repairs, in the whole country! What am I supposed to do from here?
What should really be done would be to send him all of my glass + the body. Then he'd have to calibrate everything. Now, I know it will never happen, at least not in Switzerland.
That's why I'm tired of all these AF issues. Btw, I also tried some of my lenses on my dad's K10D. I don't see any AF improvement over my K5 (seems even worse).
Right now, I'm selling all of my lenses and keeping the ones that works well with my body (DA 12-24, DA 15, Sigma 17-70 and DA 100 macro).
I'll wait to see what Nikon comes up with regarding the D400 and D800 and take it from there. However, I don't think I'll buy any new Pentax glass. I really get the impression their QC has gotten down big time in the last 4 years (maybe it's just me or an impression though).
Have you considered that the camera might be at fault for some of your focus problems? I mean since it happens to so many of your lenses. I have the K-5 with a 50-135mm (which I owned before, sold, traded back later against the 60-250mm+money to get f/2.8 again), 16-50mm and had the 60-250mm before, and I don't have any problems like this. I had a problem with the 16-50mm (which is the second one of these lenses I've owned, sold the first due to finances, it did not have these problems), but I sent it in for a fix, and now it's good. They also worked as they should on my K-x and K10D.
I say this cause it seems odd that you have problem with so many lenses, that it might be the camera that is at fault, or maybe somewhat at fault.
[/quote]
Yes, it has occured to me and that's why I sent it back for an AF check-up. Pentax is not present in Switzerland, but they use a 3rd party company (it's only a single guy!), to deal with repairs and revisions. Originally my DA* 50-135 would never be sharp wide-open even with micro adjustments. So I contacted the guy describing exactly my issues. He asked me to send the DA* 50-135. I did. He said he fixed it. When I got it back, it was better: but now it's either sharp at 50 or 135, but not both. I told him and he asked me to send the body, which is what I did. Now that it's back, I encounter exactly the same issue. No change whatsoever. See, this guy is the only guy dealing with Pentax repairs, in the whole country! What am I supposed to do from here?
What should really be done would be to send him all of my glass + the body. Then he'd have to calibrate everything. Now, I know it will never happen, at least not in Switzerland.
That's why I'm tired of all these AF issues. Btw, I also tried some of my lenses on my dad's K10D. I don't see any AF improvement over my K5 (seems even worse).
Right now, I'm selling all of my lenses and keeping the ones that works well with my body (DA 12-24, DA 15, Sigma 17-70 and DA 100 macro).
I'll wait to see what Nikon comes up with regarding the D400 and D800 and take it from there. However, I don't think I'll buy any new Pentax glass. I really get the impression their QC has gotten down big time in the last 4 years (maybe it's just me or an impression though).