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02-19-2009, 08:19 PM   #1
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New lens (Sigma 70-200 EX)

This may sound strange but I bought my second Sigma 70-200EX. I've had the old non DG/non macro version for a few years but I recently have been doing some shooting that not only required a fast zoom in that range but it had to have HSM/SDM.

My wife has been training our dog in agility and he's finally just starting to run trials, I made the mistake at a practice of not using a silent lens and as soon as the "swirl" of the lens happened the dog looked up, saw me and ran to me.
So I needed a fast lens (especially for the indoor stuff) in that zoom range with a silent motor, which meant the Sigma was the only choice.

So I got the lens tonight and of course the 1st thing I did was check for focus accuracy, sharpness ect. As some reports have said it is softer wide open @200mm then the old non DG version. It also front focused at 200mm slightly which seems to have been resolved by a focus adjustment (found a good compromise that didn't seem to affect other focal lengths). That being said after some real world testing it could be going back if the focus is off.

The other thing that makes me not as excited about the lens is that I've been shooting with my DA*300 almost exclusively since I got it and it really does blow the Sigma away. That d%*m incredible IQ of the DA*300 is ruining perfectly good LBA for other lenses. I really wish Pentax had that range in a DA* f/2.8 lens.

I have to say that this is the only time I've ever thought about running a dual system and picking up a used 40d and 70-200 USM (which is supposed to be superior to the Sigma)

Oh well, just thought I'd share as everyone here can relate I'll post some examples tomorrow.



Thanks
John

02-19-2009, 09:13 PM   #2
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And a couple of test shots tonight. Both taken with the built in flash. Hopefully I'll be able to take some more real world photos tomorrow.

Both times I focused on the right eye (the half blue one)
Pentax K20D ,Sigma APO 70-200mm F2.8 II EX DG MACRO HSM Penta
1/100s f/2.8 at 70.0mm iso800


Pentax K20D ,Sigma APO 70-200mm F2.8 II EX DG MACRO HSM Penta
1/180s f/2.8 at 200.0mm iso800
02-19-2009, 11:19 PM   #3
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I've had Sigma calibrate lenses to my specific camera (yes, I really sent them my camera) and have gotten great results if that helps at all.
02-22-2009, 04:47 PM   #4
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Please please please - is the HSM faster? I also have a non-DG 70-200 and am considering the upgrade for focus speed alone.

02-22-2009, 06:12 PM   #5
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QuoteOriginally posted by Arpe Quote
Please please please - is the HSM faster? I also have a non-DG 70-200 and am considering the upgrade for focus speed alone.
I do think it is faster but I have no hard proof if that is a fact or just because it seems faster because it is silent. I will say that the old non-DG/non-Macro lens is sharper.

BTW I was able to put this lens through some paces over the weekend in some very difficult situations.

https://www.pentaxforums.com/forums/post-your-photos/51861-iso3200-dog-agilit...tml#post498119


John

Last edited by palmor; 02-22-2009 at 06:26 PM.
02-23-2009, 04:52 PM   #6
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QuoteOriginally posted by palmor Quote
I do think it is faster but I have no hard proof if that is a fact or just because it seems faster because it is silent. I will say that the old non-DG/non-Macro lens is sharper.

BTW I was able to put this lens through some paces over the weekend in some very difficult situations.

https://www.pentaxforums.com/forums/post-your-photos/51861-iso3200-dog-agilit...tml#post498119


John
Thanks I'll check it out.
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