Forgot Password
Pentax Camera Forums Home

Show Printable Version Search this Thread
10-24-2011, 09:11 PM   #1
Site Supporter
Pepe Guitarra's Avatar

Join Date: Nov 2010
Location: California
Photos: Gallery | Albums
Posts: 2,060
Pentax, Tamron or Sigma ultra-wide lens???

Sigma 10-20mm f/4-5.6, or Tamron 10-20mm f/3.5-4.5, or Pentax DA 12-24mm f4

I want to buy one of the above lenses, but I can only afford the cheapest one, the Tamron. What can go wrong? The difference between the Tamron and Sigma is about $60, and the difference between the Tamron and the Pentax is $200. I have read all the reviews of each lens and am not sure yet. I have had good experience with Tamron, Sigma and Pentax. Can you trow your $0.02?
Thanks, Pepe

10-24-2011, 09:42 PM   #2
hcc's Avatar

Join Date: Nov 2009
Location: Brisbane, Australia
Photos: Gallery | Albums
Posts: 3,531
My 2 cents suggestion. Consider to buy second hand, for example at the PF marketplace. This will give you more option possibly.

5 out of my 8 lenses were purchased 2nd hand from PF marketplace, KEH and (Used equipment). They work as well and give me as good shots as the lenses that I puchased new.

Last edited by hcc; 10-24-2011 at 10:05 PM.
10-24-2011, 09:45 PM   #3
Site Webmaster
Adam's Avatar

Join Date: Sep 2006
Location: Arizona
Photos: Gallery | Albums
Posts: 43,124
Perhaps this will be the topic of our next comparative review

Adam Webmaster (Site Usage Guide | Site Help | My Photography)'s high server and development costs are user-supported. You can help cover those costs by donating. Or, buy your photo gear from our affiliates, Adorama, B&H Photo, or Topaz Labs, and get FREE Marketplace access - click here to see how! Trusted Pentax retailers:

10-25-2011, 12:30 AM   #4
Forum Member

Join Date: Sep 2011
Posts: 88
I bought the Sigma 10-20mm f/4-5.6 and used it for the first time last week on holiday; I was pretty pleased with it and glad I bought it.
Here's an example:

10-25-2011, 12:33 AM   #5
Veteran Member
RioRico's Avatar

Join Date: Jun 2008
Location: Limbo, California
Posts: 11,264
I thought hard about this around last XMas, when I had enough cash to choose a UWA. I *could* have got any of them, although the Pentax or newer Sigma would have hurt a bit. I considered that Pentax probably had the best quality, but Tamron had the best warranty and coupon (lowest price). I considered all the user reports of users with the Sigmas (both versions) having to return 2-3-4 copies before getting a good lens. (And I've since talked to pros who despise Sigma's QC.)

The Tamron with coupon was US$375 shipped. A used older-version Sigma would be a bit more, the others (Pentax and newer Sigma) more yet. But I wondered about buying a used copy of a Sigma lens with known issues. I know that many Sigma users are happy -- once they get a good copy. I considered, and I decided on the Tamron, and I'm happy. I like the images it delivers, its handling, and its focal range. And the price, and the warranty.

My recommendation: Whichever UWA you decide on, buy from a dealer with a no-questions return+refund policy.
10-25-2011, 01:31 AM   #6
Veteran Member
DaveHolmes's Avatar

Join Date: Jul 2010
Location: Yorkshire
Posts: 1,501
If the Tamron variant is as good as its 17-50 2.8 lens... Snap its arm off...

QuoteOriginally posted by RioRico Quote
My recommendation: Whichever UWA you decide on, buy from a dealer with a no-questions return+refund policy
Although I too have a fair few used or older lenses (OK... Nothing that matches RioRico's collection!!) I tend to buy 'newer' AF lenses 'new' for similar reasons... Newer lenses tend to hold value quite well, so picking up secondhand with no warranty for a fairly similar price (or at least a fairly large outlay...) seems overly dangerous to me...

@DonRak... Beautiful picture, where is that?

@Pepe... Some of the stores near me offer 'price-match' against internet deals... This is deffo worth finding out about... I saved 45 on my Tamron 17-50... Ask whether the stores near you offer a price match deal...
10-25-2011, 12:27 PM   #7
Site Supporter
JimD's Avatar

Join Date: Feb 2011
Location: Newport, South Wales
Posts: 163
QuoteOriginally posted by DaveHolmes Quote

@DonRak... Beautiful picture, where is that?


Is it Dartmouth?
10-25-2011, 12:38 PM   #8
Site Supporter
Ahab's Avatar

Join Date: Jul 2007
Location: Oracle, Az
Photos: Gallery | Albums
Posts: 739
I think you would be happy with the Tamron.

10-25-2011, 12:46 PM   #9
bobmaxja's Avatar

Join Date: Mar 2010
Location: Laval, Quebec Canada
Posts: 1,736
I do have the Tamron. You can make a search . This subject is coming every few weeks
10-25-2011, 02:09 PM   #10
Forum Member

Join Date: Sep 2011
Posts: 88
Yep, Dartmouth. Its Bayards Cove where the Speedwell, carrying the Pilgrim Fathers, set sail from.
10-25-2011, 05:59 PM   #11
Site Supporter
Spodeworld's Avatar

Join Date: Aug 2011
Location: New Joisey
Photos: Gallery | Albums
Posts: 1,240
I'm a fan of Tamron, I have 3 of their lenses and they are really good. But, I hear that the Tamron 10-24 is perhaps the weakest one in Tamron's lineup. I want to get an ultra-wide lens too, but based on the number of mixed reviews I've seen on this lens, this one has me concerned.

I hear the sharpest one out there is the Tokina 11-16 f2.8. People swear by that one. But, I am not sure if they make one for Pentax.

10-25-2011, 08:44 PM   #12
Veteran Member
riff's Avatar

Join Date: Jun 2011
Photos: Albums
Posts: 1,408
Sadly the Tokina 11-16 f2.8 is not available for Pentax.

I have the Sigma 10-20mm f/4-5.6 and I'm beyond happy with it, it's a LIMO (light in magic out) lens.

FWIW the way they are listed in the topic is the way I rated them.
10-25-2011, 08:58 PM   #13
Veteran Member
Andi Lo's Avatar

Join Date: Jul 2008
Location: Halifax, Nova Scotia
Posts: 2,925
Sigma is a good lens. I recommend buying secondhand to eliminate decentering issues.

BF/FF is not really an issue outside of bokeh shots.
10-25-2011, 09:01 PM   #14
Veteran Member
RioRico's Avatar

Join Date: Jun 2008
Location: Limbo, California
Posts: 11,264
QuoteOriginally posted by riff Quote
FWIW the way they are listed in the topic is the way I rated them.
Sorry I can't provide a reference, but I read not long ago that with copy variation taken into account, the IQ differences between models is trivial. Does this make the decision easier?

EDIT: I just noticed that this is my 7000th post here. I'm on a roll!

Last edited by RioRico; 10-26-2011 at 01:43 PM.
10-25-2011, 09:03 PM   #15
Loyal Site Supporter
Canada_Rockies's Avatar

Join Date: Nov 2007
Location: Sparwood, BC, Canada
Photos: Gallery | Albums
Posts: 9,535
I have the DA 12-24, and I like it very much. Expensive, yes, but after several not so good experiences with third party lenses and not buying any lens with the controls reversed (focus, f/stop, zoom) I will never buy another, no matter how good it is. That's just one old curmudgeon's viewpoint. Take it with a pound of salt.

  • 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!
10-20mm, camera, pentax, pentax help, photography, sigma, tamron
Thread Tools Search this Thread
Search this Thread:

Advanced Search

Similar Threads
Thread Thread Starter Forum Replies Last Post
Sigma 8-16mm ultra wide trevisthomas Pentax SLR Lens Discussion 6 03-07-2011 02:59 PM
Ultra Wide Angle lens- Which one ? taiweitai Pentax SLR Lens Discussion 31 02-18-2011 02:45 AM
What is the best ultra wide lens for real estate photography? HermanLee Pentax SLR Lens Discussion 17 11-07-2010 11:54 AM
BEST Ultra-WIDE or Fish-Eye Lens? PentaxForums-User Pentax SLR Lens Discussion 18 12-14-2009 02:21 PM
For Sale - Sold: DA 12-24mm f4 Ultra wide lens, Peter Zack Sold Items 3 11-17-2009 12:57 PM

All times are GMT -7. The time now is 11:55 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]