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08-03-2008, 05:55 PM   #1
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Sigma 70-200mm F2.8 EX DG II SDM

I was wondering if anybody out there has purchased one. I talked to a local store manager who told me of one ordered and coming in the next few weeks. He will call me on its arrival. I told him to put a hold on it for me. Any comments on this lens? The specs appear good but reviews by users would certainly help.

08-03-2008, 06:16 PM   #2
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Most here would say they are not yet produced in Pentax mount. We will be happy if you prove us wrong.
08-03-2008, 07:15 PM   #3
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dpreview has done a test on the lens and were less than impressed
08-03-2008, 07:20 PM   #4
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QuoteOriginally posted by k100d Quote
dpreview has done a test on the lens and were less than impressed
I wouldn't say that. They found it to be a mixed bag. The Sigma has better autofocus performance than the Tamron but the Tamron has better optical performance ... when it focuses correctly.

The DA* 50-135mm is probably a better all-around lens than either the Sigma or Tamron 70-200mm ... but the 50-135mm obviously doesn't give you as much telephoto reach.

08-03-2008, 08:55 PM   #5
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Yo,

I got stuck into the situation of whether to purchase the Sigma 70-200 F2.8 or the Pentax 50-135 F2.8 - It came down to me as to which one would be more practical and offered the image quality that I wanted. I asked my local shop to put a the Sigma on hold for me, but they got a backorder until September - and having the reviews that have been wrote on the Sigma lens, I was not to impressed and it did not seem as great as I was hoping. That left me to get the 50-135, and when It came down to it, it was the right choice - the focal length was perfect for me - since it was a practical range, and the image quality was prime. You may want to look into another lens besides the Sigma 70-200.

Best,

Shane
08-04-2008, 10:30 AM   #6
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QuoteOriginally posted by Arpe Quote
Most here would say they are not yet produced in Pentax mount. We will be happy if you prove us wrong.
Sigma is producing the Pentax mount with SDM. It is available this month according to the dealer.

This is a new version of this lens with improvements. That why the label is EX DG II. Remember that this is a FF lens which I am not sure if it should be compared to lenses which are not.

Check this site for features.

Sigma - Lenses

As for dpreview, the lens was rated 8.5 on all while the Tamron was 8.0 and 8.5 for image quality and value. The Tamron focus motor was very noisy according to the review. This could be an issue.

For the value both appear to be fairly good.
08-04-2008, 10:54 AM   #7
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the tamron was reviewed on canon mount with an internal motor but pentax mount will use the af motor from the body, so the autofocus noise and performance is not all that relevant from their review to pentax. but the sigma af performance especially with the hsm should be better

funny the Sigma gets better IQ marks, qualitatively they seem to give tamron the edge. the dpreview scoring system is enigmatic to say the least
08-04-2008, 12:19 PM   #8
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QuoteOriginally posted by Denis Quote
I was wondering if anybody out there has purchased one. I talked to a local store manager who told me of one ordered and coming in the next few weeks. He will call me on its arrival. I told him to put a hold on it for me. Any comments on this lens? The specs appear good but reviews by users would certainly help.
The lens has been available in other mounts for quite a while and has taken a little bit of a hit from Nikon and Canon owners. The previous version of the lens (EX DG IF APO) was outstanding and capable of high end professional work.

The macro version has some optical weaknesses and you might do a little better with the 50-135...but that will clearly leave you short of the working end of the Sigma @ 200mm.

If you have an opportunity to get the last incarnation of this lens (above) you will be satisfied. Even screw driven, the lens focuses fast and is critically sharp at 2.8.

Stephen

08-15-2008, 11:02 PM   #9
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the older Sigma 70-200 f2.8 with screw drive focus works very well with its matching 1.4x TC.. i wonder how that translates for the HSM version, and if there is even a TC to come with it.
I finally had a visible full moon tonight, so gave this combo a shot: K20D with the Sigma EX DG APO 70-200 + 1.4x TC, 100% crop. i would have to say it's plenty sharp at 200x1.4 (Left: f8.0; Right : f4.0)
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Last edited by truonganh; 08-15-2008 at 11:42 PM.
08-16-2008, 10:12 AM   #10
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QuoteOriginally posted by truonganh Quote
the older Sigma 70-200 f2.8 with screw drive focus works very well with its matching 1.4x TC.. i wonder how that translates for the HSM version, and if there is even a TC to come with it.
I finally had a visible full moon tonight, so gave this combo a shot: K20D with the Sigma EX DG APO 70-200 + 1.4x TC, 100% crop. i would have to say it's plenty sharp at 200x1.4 (Left: f8.0; Right : f4.0)
Thanks all,

for the money, I feel confident that it will meet my requirements. I was thinking of getting the 1.4 TC, F4 and long focal lenght could be very usefull. I have read mixed reviews on IQ (lens & TC) but will do my own field test to see if it is suitable. I have the Sigma 24-60 F2.8 and did some tests (compare to 50 FA 1.4, DA 16-45) and was very impressed with sharpness even at 2.8 therefore I am hoping the Sigma 70-200 will perform accordingly. I also like the full frame just in case Pentax moves toward a FF body. The SDM will also be a nice addition.
10-02-2008, 02:37 PM   #11
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QuoteOriginally posted by k100d Quote
dpreview has done a test on the lens and were less than impressed
Keith54321 said:

Dpreview was impressed wiith the lens: It was indeed as good if not better than original maufacturer lenses.

Sigma 70-200 f2.8

Keith
10-02-2008, 04:41 PM   #12
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QuoteOriginally posted by keith54321 Quote
Keith54321 said:

Dpreview was impressed wiith the lens: It was indeed as good if not better than original maufacturer lenses.

Sigma 70-200 f2.8

Keith
This lens has been in my hands for almost the past month. Results are quite good as seen in many posts from all owners. I do believe the dpreview review does not reflect the real quality of this lens. Comments often did not match the rating. It is not perfect but with good IQ and HSM quiet focus it is good value for a low cost.
10-02-2008, 04:56 PM   #13
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HEY DENNIS


JUST BOUGHT MINE, HERE IS MY THREAD OF FIRST PICS

https://www.pentaxforums.com/forums/post-your-photos/38327-first-pics-sigma-7...ii-dg-hsm.html
10-05-2008, 05:46 AM   #14
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Just got mine as well

Currently testing it. Don't have any interesting shots to show with it, mostly personal tests that I don't keep but so far it seems to perform fine.

The hood makes it a bit long (but then I'm used to carrying the Bigma so it isn't that much of an issue) but it's comfortable to use. I'll see how it does in the wild pretty soon.
12-10-2008, 10:15 PM   #15
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Just got mine

Did the focus test. No front/back focus.
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