Forgot Password
Pentax Camera Forums Home

Show Printable Version Search this Thread
05-03-2011, 03:03 PM   #1
New Member

Join Date: Apr 2010
Posts: 6
New to me Sigma 170-500mm 6.5

I recently purchased at the marketplace 170-500 Sigma. I know on this forum some people have taken excellent pictures with this lens. I looked at the Bigma and the 150-500, but because of weight and expense I decided to give this lens a shot. I have no experience with long lenses so I would appreciate any comments or suggestions that might help. I received the lens today and attached it to my K5. Played around a little bit with it on a tripod and handheld. Wasn't completely satisfied with the results, but this is most likely the photographer rather than the lens. My logic for purchasing this lens was that with the new K5's dynamic range and high ISO capabilities a slow lens like this wouldn't be as much of a problem as it would be using my K20. The shot is the first one that I consider reasonable. The conditions weren't particularly good. The little guy was under my deck on his/her nest where it is very dark and I had to shoot through lattice. I took three shots and only one I considered satisfactory. I shot raw and made some adjustments in raw and did a crop.

05-03-2011, 04:46 PM   #2
Site Supporter

Join Date: Oct 2009
Location: Philadelphia, Pa
Photos: Gallery
Posts: 764
Looks like you are off to a good start. I use a Monopod or Tripod almost exclusively with the Bigma. Both help to steady it for longer shots at 500mm. Enjoy your new lens.
05-03-2011, 07:01 PM   #3
New Member

Join Date: Apr 2010
Posts: 6
Original Poster
Thanks for the comment and the advice
05-03-2011, 07:43 PM   #4
New Member
Kailash's Avatar

Join Date: Dec 2010
Location: Victoria
Photos: Gallery | Albums
Posts: 22
Hi John,

i have this lens and have managed some reasonable shots with it, i have a few up in my pentax album need to upload a few more
While this lens will not live up to the fast big glass it is light and portable and if you use it in the right conditions should get you some pretty good images. i tend to use manual focus with this lens as it seems to be a bit off with its autofocus (could just be a matter of calibrating it to the camera) make sure the light is from behind you and bring it back a few stops from wide open. i find f8 to be its sweet spot. also as with any long lens watch the shutter speed, depending on your technique you should be able to pull of shots at 1/125 and faster hand held with shake reduction on. The K5 should get you a let you bump the iso a bit more than i can with the K7 but i would still recommend keeping it as low as possible

Hope this is of some help and good luck with the lens

05-04-2011, 01:42 AM   #5
RonHendriks1966's Avatar

Join Date: Jan 2009
Photos: Gallery
Posts: 8,714
Looks nice. I owned a copy for some time. Used it only on good light conditions. My copy was crisp sharp with f9-f11. Using a tripod is a good advice. Have fun with it.
05-04-2011, 05:15 PM   #6
Forum Member

Join Date: Jul 2007
Location: houston texas
Photos: Albums
Posts: 70
sigma 170-500

i have the sigma 170-500 dg apo f5.0-6.5. i call the lens my little bigma because it is smaller and lighter than my sigma 50-500 lens. I have the sigma 170-500 on the kr and a tarmon 18-250 on the k7. When I carry the sigma 170-500, i carry it in a holster case. consquently I do not have to switch lens.

  • 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!
k-mount, lens, pentax lens, shot, sigma, sigma 170-500mm, slr lens
Thread Tools Search this Thread
Search this Thread:

Advanced Search

Similar Threads
Thread Thread Starter Forum Replies Last Post
k5 and older sigma 170-500mm djayvo Pentax K-5 10 04-05-2011 11:29 AM
For Sale - Sold: Sigma 170-500mm APO 5-6.3 for K mount (US) shimoyjk Sold Items 4 01-20-2011 06:21 PM
Sigma 170-500mm - worth it? Thrasis Pentax SLR Lens Discussion 6 01-20-2011 11:03 AM
For Sale - Sold: Pentax AF-540FGZ Flash, Sigma 10-20mm F4-5.6, Sigma 170-500mm F5-6.3 davebest Sold Items 12 06-25-2009 02:48 PM

All times are GMT -7. The time now is 05:14 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]