Forgot Password
Pentax Camera Forums Home
 

Reply
Show Printable Version Search this Thread
01-03-2011, 09:26 PM   #1
Veteran Member
rrwilliams64's Avatar

Join Date: Nov 2010
Location: ohio
Posts: 332
Sigma 17-70 f/2.8-4 OS HSM or Tamron 28-75mm f/2.8

Tamron AF 28-75mm f/2.8 SP XR ZL Di LD Aspherical (IF)
Sigma 17-70mm f/2.8-4 DC Macro OS HSM

...debating between these two lenses. Lose a bit at the wide end w/ the Tammy but w/ constant 2.8 (but does it need stopped down to retain sharpness?).
The Sigma.....I've read the in-lens stabilization is a stop or two better than my K-x in-body SR. Can't vouch for validity of that, esp at short FL's...Just looking for input on IQ comparisons, color rendering, sharpness, all that good stuff
--> this would be my walk around daily use lens.
I have my 50mm M f1.7 for low light indoors, but would like one of these aforementioned to be on the camera most of the time (indoors also, concerned about the 28mm wide end)

..roughly same price new...anyone had experience with both? I was initially looking at a Tammy 17-50, but a bit short for my needs.

Any input appreciated to further cloud my judgement. I am critically indecisive!!!!

01-03-2011, 09:45 PM   #2
Ash
Community Manager
Loyal Site Supporter
Ash's Avatar

Join Date: Mar 2007
Location: Toowoomba, Queensland
Photos: Gallery | Albums
Posts: 22,687
Indoors, you'll find 28mm restrictive.
If you need speed for portraiture, there is hardly anything better for a zoom than the 28-75.
I'm less enthusiastic about variable maximum aperture zooms, so don't like the Sigma and not sure if f/4 is fast enough for you at 70mm.
You'll have to make a decision.
01-03-2011, 09:55 PM   #3
Veteran Member
Jewelltrail's Avatar

Join Date: May 2008
Location: Rhode Island
Photos: Albums
Posts: 4,180
I own the Tamron 28-75, not the Sigma. The Tamron is, at least, very good wide open. I also own the Tamron 17-50mm 2.8, which is sharper wide open and @ other apertures than my 28-75. I do not know if the 17-50mm focal range will work--just throwing another idea out there.

If you can live, free of regrets, with 28mm as your wide, then get the Tammy 28-75--it really is excellent. I would disregard stabilization issues at these focal ranges.

Last edited by Jewelltrail; 01-04-2011 at 06:26 AM.
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!
bit, f/2.8-4, indoors, input, k-mount, os, pentax lens, sigma 17-70 f/2.8-4, slr lens, tammy, tamron 28-75mm
Thread Tools Search this Thread
Search this Thread:

Advanced Search


Similar Threads
Thread Thread Starter Forum Replies Last Post
Tamron 17-50mm, Tamron 28-75mm, Sigma 17-70mm, which lens for my trip to Greece? macky112 Pentax SLR Lens Discussion 15 11-20-2011 03:08 PM
Tamron 28-75mm f2.8 or Sigma 24-70mm f2.8? bfo Pentax SLR Lens Discussion 15 05-01-2010 03:47 AM
Wanted - Acquired: sigma 17-70mm or tamron 28-75mm f/2.8 kjfaust Sold Items 1 01-26-2010 07:25 PM
Sigma 70-200 2.8 HSM II + Tamron 1.4X Darth Ramirez Pentax SLR Lens Discussion 24 10-30-2009 01:18 AM



All times are GMT -7. The time now is 09:11 PM. | 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