Forgot Password
Pentax Camera Forums Home

Show Printable Version Search this Thread
09-04-2009, 07:58 AM   #31
Senior Member
Rich_A's Avatar

Join Date: Aug 2009
Location: Montana
Photos: Gallery
Posts: 213
That's great news, Ray! It sounds like you had terrific support from both Pentax and Sigma. Good to know that they take customer service seriously nowadays.

09-06-2009, 02:23 PM   #32

Join Date: Sep 2006
Location: Millstone,NJ
Posts: 6,491
Here is a video with SR on with 500mm F6.3 Rokinon set to 6ft close range. You could hear the SR getting a workout.
YouTube - First test of Pentax K-7 with 500mm F6.3 Rokinon mirror lens handheld at 6 ft close focus and SR on
10-12-2009, 12:43 PM   #33
Inactive Account

Join Date: Oct 2009
Posts: 1
Hi, I'm unfortunaterly experiencing the same problem.

I thought SR was doing fine..... until I got my Sigma 24-70 DG EX HSM. From then, it seems that with SR on, I can't get a single sharp picture.

I tried to switch back to the 50-200 from the kit..... with the same problem.

In live view, it's just nonsense (lots of noise from the SR and as if I was jumping with the camera on the screen)

Now batteries went off...... I'm just hoping that this was the problem. I'll tell you when they are up again.

Just so I know, have you experienced the same problem with your new K7 Body or is this defenitely history ?

EDIT: My mistake, only the Sigma is having the problem. Other lenses are working fine (Tamron, Pentax FA and Pentax DA). I'm asking for a new Sigma lense. I'll tell the forum if it's ok with a new one.

Last edited by gDude; 10-12-2009 at 02:00 PM.
10-12-2009, 07:50 PM   #34
Senior Member
bentax's Avatar

Join Date: Jan 2008
Location: West Australia
Posts: 190
QuoteOriginally posted by mcjm78 Quote

I still have my K20 and K10 with me. What I can say from experience is those cameras never made me doubt the SR effectiveness when i need it for super low light work.
I also never questioned the SR effectiveness with my K20 and K10. Always seemed to do about what i expected at any one time.

From pretty much day dot with the K7 i had strange sensation that i was often getting bluryer shots than i should even with shutter speed around 1/focal length.

Not until i seen this thread did it click that it might be SR upsetting things.

Have since tried turning the SR off after a failed shot and that definately helped with getting a crisper photo.

Bit of a let down, since its one of the reasons i bought into Pentax, but it doesnt happen every time. Need to check this more thoroughly.

12-01-2009, 09:30 AM   #35
New Member

Join Date: Feb 2008
Location: UK
Posts: 9

This is great, I'm not going mad! I have a major problem with the SR on my K-7 after putting my Sigma 10-20 on it! It's gone back to SRS for a refund. Anyhow I have decided to move systems after a faulty K10 and two faulty K20s and a faulty 16-45 amongst others. I don't know why I let it go on this long.

Bye Pentax

  • 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, dslr, function, image, lens, lenses, pentax, pentax k-7, photography, sigma, sr
Thread Tools Search this Thread
Search this Thread:

Advanced Search

Similar Threads
Thread Thread Starter Forum Replies Last Post
K-x shake reduction with non-Pentax Zoom lenses JoepLX3 Pentax DSLR Discussion 12 08-21-2010 11:41 AM
Pentax shake reduction revisited (test) falconeye Pentax DSLR Discussion 32 07-22-2010 02:36 AM
Shake Reduction/Over Exposed Images Problem Jeff Lowe Pentax DSLR Discussion 20 06-19-2010 09:05 AM
K100D Super Shake Reduction problem lochest Pentax DSLR Discussion 2 10-15-2009 08:38 PM
K20D shake reduction problem? DanielT74 Pentax DSLR Discussion 4 10-02-2009 10:32 AM

All times are GMT -7. The time now is 12:50 AM. | 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]