Forgot Password
Pentax Camera Forums Home
 

Reply
Show Printable Version Search this Thread
11-03-2016, 02:12 PM   #16
New Member




Join Date: Feb 2015
Posts: 8
I have the same problem on my K-1. It doesn't properly focus with phase detection, but contrast detect works more or less fine (but slow). After I killed my first K-1 Body (dropped it on a stonefrom about 4 feet), i was hoping that it would work ond the second one, but it doesn't. The strange thing is it works fine on my K-3. So I guess it's the same problem.

It's not the contacts, I cleaned them several times. So I guess it's a problem with some copies of the lens and on some it works fine.

09-29-2017, 02:38 PM   #17
Junior Member
marmitse's Avatar

Join Date: Dec 2013
Location: Vaxholm/Stockholm
Photos: Gallery
Posts: 34
QuoteOriginally posted by emptyd83 Quote
I have the same problem on my K-1. It doesn't properly focus with phase detection, but contrast detect works more or less fine (but slow). After I killed my first K-1 Body (dropped it on a stonefrom about 4 feet), i was hoping that it would work ond the second one, but it doesn't. The strange thing is it works fine on my K-3. So I guess it's the same problem.

It's not the contacts, I cleaned them several times. So I guess it's a problem with some copies of the lens and on some it works fine.
Same problem here, Loved the Tamron 70-200/2,8 for portraits and with my Pentax K-3. With my brand new K-1 it rarely focuses at all (through the viewfinder). Having a portrait session is a nightmare.
09-18-2018, 04:35 AM   #18
Junior Member
marmitse's Avatar

Join Date: Dec 2013
Location: Vaxholm/Stockholm
Photos: Gallery
Posts: 34
Problem solved!
I sent my K-1 for the upgrade to K-1 II and since the repair shop also do Tamron service I asked them to take a look at the focusing problem. They changed the "zoom tubes" and now the lens focuses as it should also with the K-1 II. I guess this is not an effect of the camera upgrade. One question that comes to mind: If there was a mechanical problem with the lens and the screw drive was a bit hard for the camera to operate. Why would the K3 be stronger and less prone to focusing problems as compared to the K-1 II?
09-18-2018, 10:54 AM   #19
Pentaxian




Join Date: May 2016
Photos: Albums
Posts: 1,929
I have issues with precise focus as well sometimes. Really depends on the distance to object. I tried calibrating, with -7 settings I can get good focus with close objects, but stuff in the distance not so much, with +3 it's good for long distance stuff but it's off with close subjects. So far wasn't able to find settings that work well in all situations. I have 0 issues with dfa lenses though (similar issues with da 50 1.8, but not with Tamron 90 macro, go figure..)

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!
camera, k1, lens, pentax help, photography, tamron, troubleshooting
Thread Tools Search this Thread
Search this Thread:

Advanced Search


Similar Threads
Thread Thread Starter Forum Replies Last Post
Pentax 1.4 converter on the 70-200 with K1 Paul2660 Pentax K-1 7 09-21-2016 04:54 AM
Old vs New on K-1 Tamron 80-200 F2.8 vs/ Tamron 70-200 F2.8 (plus SMCP F35-105 added) Erictator Pentax K-1 10 06-18-2016 12:19 PM
How does the new Pentax 70-200 compare to Tamron or sigma 70-200? Sandi in Halifax Pentax SLR Lens Discussion 27 04-28-2016 06:25 AM
K1 sample with 70-200 zmohie Pentax K-1 2 03-01-2016 06:48 PM
Help with Tamron 70-200 or Sigma 70-200 candgpics Pentax SLR Lens Discussion 9 05-01-2013 06:03 PM



All times are GMT -7. The time now is 01:31 AM. | 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