Forgot Password
Pentax Camera Forums Home
 

Reply
Show Printable Version Search this Thread
09-07-2011, 02:26 PM   #16
Pentaxian
normhead's Avatar

Join Date: Jun 2007
Location: Near Algonquin Park
Photos: Gallery | Albums
Posts: 25,558
Before we got the Tamron 90 2.8 macro, I thought the 70-300 macro was worth keeping the lens for. I'm still thinking it does well up until about 135mm, I'm definitley not impressed with it's performance between 200mm and 300mm. We have a DA*60-250, but we also have two photgraphers, so often the Sigma 70-300 still comes along. And at close range it's magnification is about 50% more than the 60-250 and it's very sharp close in. If all you have is a kit lens, and you want telephoto and macro.. this is the lens to get. It was half of a two lens kit for me for years. IN that capacity it's a great lens. It didn't really become redundant until we got the DA* 60-250... at 5 times the price.

09-07-2011, 02:27 PM   #17
Site Supporter
mikeSF's Avatar

Join Date: Jan 2009
Location: East Bay Area, CA
Photos: Gallery
Posts: 5,696
QuoteOriginally posted by luftfluss Quote
I wouldn't say that PF is "easy to remove". It can be mitigated to a greater or lesser degree. However, one should realize that PF (and all kinds of CA) results in a loss of image data, we just hope it isn't in an area of the photo where this is important or noticeable. Also, most methods of reducing PF result in the "fixed" areas being gray, and this isn't always appropriate to the image.
agreed. I know 3 or 4 methods of reducing PF in Photoshop and I still spend precious time dealing with it for the pics that matter. To do it right is not a walk in the park in many cases.
09-10-2011, 06:33 PM   #18
Pentaxian
Sagitta's Avatar

Join Date: Feb 2011
Location: Maine
Photos: Gallery
Posts: 2,937
Just figured I'd bump this thread because I went to a firemen's parade today, and wound up using my busted up 70-300 non-APO Sigma for the duration. All shots were at f/8 at various lengths (most shot at 70mm however). I'm still uploading the mega-batch of shots to my flickr, but to get an idea of what even the 'worst' sample of that lens can do, feel free to check it out. I'll be shoving all the images into a set once I can get in and tag/rename the things. Only PP (except for excising a few things from a few shots with content aware) for all was cropping and auto levels/tones/contrast in Photoshop, everything else was the Sigma and my K-x.
09-10-2011, 07:10 PM   #19
Site Supporter
mikeSF's Avatar

Join Date: Jan 2009
Location: East Bay Area, CA
Photos: Gallery
Posts: 5,696
superb images!

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!
k-mount, lens, lenses, mm, pentax lens, sigma, sigma 70-300 mm, slr lens
Thread Tools Search this Thread
Search this Thread:

Advanced Search


Similar Threads
Thread Thread Starter Forum Replies Last Post
Nikon D7000 + 70-300 VR vs. Pentax K5 + Sigma 100-300 highyellow1 Non-Pentax Cameras: Canon, Nikon, etc. 41 05-06-2011 07:40 AM
Sigma 300 & 500mm lenses garyk Pentax SLR Lens Discussion 4 11-17-2010 08:03 PM
I'm Traveling, Want Inexpensive Telephoto Zooms : Pentax 55-300 Or Sigma 70-300 APO Christopher M.W.T Pentax SLR Lens Discussion 32 01-01-2010 07:48 PM
70-300 macro lenses Sigma & tamron fevbusch Pentax SLR Lens Discussion 22 05-24-2007 07:18 PM



All times are GMT -7. The time now is 04:08 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