Forgot Password
Pentax Camera Forums Home
 

Reply
Show Printable Version Search this Thread
12-05-2008, 03:47 PM   #1
Junior Member




Join Date: Dec 2008
Location: Salt Lake City, Utah
Posts: 36
Sigma 70-200mm F2.8 EX DG Macro HSM II on K10D

I was wondering if anyone has used the Sigma 70-200mm F2.8 EX DG Macro HSM II on the Pentax K10D. I have heard that it gets a little grainy when it's wide open and when it's zoomed all the way in but wanted to hear from someone that had used the lens. I'm looking for a good 70-200 lens for sports and wildlife photography but don't want to pay much if any more than what this sells for. So if you have any other good suggestions let me know. Thanks ahead of time!

12-05-2008, 05:20 PM   #2
Senior Member




Join Date: Jan 2008
Location: Flower Mound, Texas
Photos: Albums
Posts: 119
I recently bought one of these for my K10D (and 20D) and had to return it twice because the lens front focused so badly, on both cameras. I could correct it partially with the K20D but not enough.

Both of my cameras work perfectly with all my other Pentax lenses (DA*300, DA18-250, FA50 f1.7 and 28mm f2.8). So I know the 70-200 was the problem. I finally exchanged it for a DA*50-135mm.

When the Sigma 70-200 was stopped down it was nice and sharp (still a slight FF but DOF made it acceptable) I really hated sending this lens back because it has great potential, but I was disappointed with it being defective.

Maybe others have had better luck with this than I had.

Getting the 50-135 Monday and hope it is a good copy.
12-05-2008, 09:28 PM   #3
Veteran Member
krypticide's Avatar

Join Date: Dec 2007
Photos: Gallery
Posts: 1,079
I haven't systematically seen a BF/FF problem with mine, but the focus can be off sometimes. To compensate, I just zoom in, focus, then zoom out again and that always works.

It's a bit soft at 2.8, but is very sharp stopped down even just a little. I highly recommend the lens, just consider getting a monopod as it is heavy.
12-06-2008, 12:19 AM   #4
Senior Member




Join Date: Jan 2008
Location: Flower Mound, Texas
Photos: Albums
Posts: 119
The two that I received over the past two weeks FF about 25mm. Enough that the K20D couldn't correct it. Using the Tim Jackson test chart and staging a real life focus test both lenses were front focusing equally with my K10D and K20D. From the minimum focusing distance to infinity it was very noticeable. Things started to sharpen up @ around f5.6-8 and then the lens was great. Too bad that Sigma's quality control is lacking on this this batch of 70-200s.

I really wanted this lens to be a keeper, but sending in a new lens for adjustments is just not acceptable to me, especially after sending back two new lenses. I've been buying lenses for the past 30 years and this was the first one to truely dissapoint me.

I've read similar accounts that had my same experience and then an equal amount of people like the poster above who received a great copy.

12-06-2008, 01:07 AM   #5
Veteran Member
cupic's Avatar

Join Date: Apr 2008
Location: Australia-NSW
Photos: Gallery
Posts: 4,736
Can you displays some of FF BF issues .


cheers
12-06-2008, 03:09 PM   #6
Junior Member




Join Date: Dec 2008
Location: Salt Lake City, Utah
Posts: 36
Original Poster
Sigma APO EX 70-200mm f/2.8 Would this be a better option? it looks like people have been pretty happy with it.
12-06-2008, 08:34 PM   #7
Senior Member




Join Date: Dec 2008
Location: N/E Victoria, Australia, on the mighty Murray River.
Photos: Albums
Posts: 142
Sigma APO lenses are meant to be of a higher quality so you would have to think
that any problem they had in the past would be fixed on the newer versions.
Have you looked at the Tamron 70-200 f2.8. Its meant to be pretty good quality
but I don't think it has the HSM.
12-06-2008, 11:00 PM   #8
Senior Member




Join Date: Jan 2008
Location: Flower Mound, Texas
Photos: Albums
Posts: 119
QuoteOriginally posted by rwheeler Quote
Sigma APO EX 70-200mm f/2.8 Would this be a better option? it looks like people have been pretty happy with it.
That the lens I just had two bad copies of. The EX DG APO Macro HSM 70-200mm f/2.8 ($769.00) Sigma's latest and greatest version, new stock bought @ Abe's of Maine 11/10/08 and 11/19/08.

12-07-2008, 09:57 AM   #9
Inactive Account




Join Date: Nov 2007
Location: Upton, Ma.
Photos: Gallery
Posts: 108
I had concidered the Sigma and bought the Tamron because of the price and reviews. I have now had the lens 2 weeks and it is going back also because of front focus issues, no test charts just looking at the shots was enough, I tried differant settings and techniques but not much better, shot comparitive pics this morning against my 70-300 Sigma 4.5-5.6 and the Sigma won hands down this should not have happened.
12-07-2008, 10:07 AM   #10
Junior Member




Join Date: Dec 2008
Location: Salt Lake City, Utah
Posts: 36
Original Poster
So what would be a good option then? I am going to be taking a lot of pictures of short track speedskating indoors in not very good light and would need a pretty long and fast lens
12-08-2008, 06:11 AM   #11
Veteran Member




Join Date: Dec 2006
Location: Outside of Philly
Posts: 1,564
Canon 40D and 135mm f/2.0 L.

QuoteOriginally posted by rwheeler Quote
So what would be a good option then? I am going to be taking a lot of pictures of short track speedskating indoors in not very good light and would need a pretty long and fast lens
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!
70-200mm, camera, dg, dg macro hsm, dslr, f2.8, f2.8 ex dg, ii, k10d, lens, macro hsm ii, photography, sigma 70-200mm f2.8
Thread Tools Search this Thread
Search this Thread:

Advanced Search


Similar Threads
Thread Thread Starter Forum Replies Last Post
People Sigma 70-200mm (non DG, non macro, non HSM) Just12hvFun Post Your Photos! 7 04-17-2010 10:49 PM
Considering the Sigma 70-200mm 70-200 f/2.8 EX DG MACRO HSM II sbluems Pentax SLR Lens Discussion 7 03-22-2010 10:15 AM
For Sale - Sold: Sigma 70-200mm f/2.8 EX DG Macro HSM II deadwolfbones Sold Items 8 02-02-2010 09:41 PM
For Sale - Sold: Sigma 70-200mm 2.8 HSM II Macro ivoire Sold Items 3 01-04-2010 09:23 PM



All times are GMT -7. The time now is 04:41 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