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03-07-2009, 02:50 PM   #16
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QuoteOriginally posted by NeverSatisfied Quote
So I don't know why an extra 4mm and HSM seems to be worth double what I paid for the Tamron? I just know it's a matter of time before I own this lens. I've got too many already, somebody talk me out of it!
Because HSM makes it quieter and faster?

Besides, we need someone to test it against a good copy of the Tamron 28-75 so I...err...we know whether it's worth the extra money

ok, so really, I went through 3 bad copies of the Tamron before giving up on it, so it'd really help if you could compare them rigorously so I know whether to keep going w/ Tamron roulette or try Sigma roulette

03-14-2009, 03:25 PM   #17
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Translated version of http://review.fengniao.com/124/1249443.html

It's actually comparable to the Nikon 24-70, which is impressive for a Sigma lens. The Nikon is a bit better wide open at the edges but the sigma is better stopped down (less distortion). The Nikon 24-70 is far sharper than the FA*28-70/2.8 IMHO, so this probably means the Sigma will also best the FA*28-70.
Now if only it'd drop down to $600 like it should be priced ;-)
03-14-2009, 03:48 PM   #18
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QuoteOriginally posted by kenyee Quote
A more official review of it seems to confirm it's better than Canon's 24-70L, but the no comparison w/ Nikon's 24-70 which is currently *the* standard nor the Tamron 28-75 which is what it'd probably compete against:
新赤壁之战 适马24-70 PK 佳能24-70-蜂鸟网
I've noticed that in a lot of tests conducted comparing Sigma and Tamron against the comparable Canon lens, the Canon loses.
03-14-2009, 04:10 PM   #19
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QuoteOriginally posted by Parallax Quote
I've noticed that in a lot of tests conducted comparing Sigma and Tamron against the comparable Canon lens, the Canon loses.
That's because
a) it's a fairly old design (lots of flare...almost as bad as the non-HSM Sigma 24-70/2.8)
b) Canon's QC on that lens rivals Tamron's utterly crappy QC on the Tamron 28-75

03-20-2009, 04:13 PM   #20
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Another review w/ full size Canon 5DmkII images you can download:
僔僌儅乽24-70mm F2.8 IF EX DG HSM乿
03-20-2009, 05:31 PM   #21
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Canon's QC on the 24-70mm was in my opinion at times worse than the DA*16-50mm.. beat that!

The test shots I saw were not tripod shots sadly.. only some quick and dirty ones and some at a brick wall(!)

On jpeg the in-camera vignetting compensation fixed some of the Canon's problems but in RAW the Sigma was in another ballpark indeed! (a better ballpark to be more precise)

Overall a much better lens than the Canon. A very able lens that is pretty close to the Nikon one in IQ. I will be very keen on trying it out when we get it in Pentax mount.
03-20-2009, 08:17 PM   #22
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QuoteOriginally posted by Shashinki Quote
Canon's QC on the 24-70mm was in my opinion at times worse than the DA*16-50mm.. beat that!
And still is from what I've read in Canon forums...still hard to get a good 24-70L...at least Pentax fixed the DA*16-50's QC issues AFAIK...

You or moving_comfort definitely have to try this when it comes out.
03-23-2009, 11:31 AM   #23
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Dutch review but babblefish and google just bring up a blank page when you try them :-P
Review: Sigma 24-70mm F2.8 IF EX DG HSM - DIGIFOTO Pro

04-14-2009, 07:40 AM   #24
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Lens test in PopPhoto but they always give everything a good review
Sigma Sigma 24?70mm f/2.8 EX DG HSM AF - Lens Review from Experts at Popular Photography- Photo Tips
04-14-2009, 07:46 AM   #25
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Yakiniku mentioned that the release date for Pentax mount is May 2nd:
SIGMA 24-70mm F2.8 IF EX DG HSM 儁儞僞僢僋僗梡敂創鷮垝鑲虃⊕m傜偣丂丂姅幃夛幮僔僌儅
04-14-2009, 09:09 AM   #26
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the old version of the lens without hsm was keeping up with the big boys anyway with image quality and ca etc , so your only really paying so much for a quiet motor, the old one wasnt even slow.
04-14-2009, 09:12 AM   #27
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QuoteOriginally posted by WerTicus Quote
the old version of the lens without hsm was keeping up with the big boys anyway with image quality and ca etc , so your only really paying so much for a quiet motor, the old one wasnt even slow.
Well, you can always do better, I guess!

From the pop photo review:

QuoteQuote:
The improvements are dramatic. They include a super-quiet HSM autofocus motor, ELD and SLD glass elements to suppress chromatic aberration, three aspheric elements for compactness and reduced aberration, rounded aperture blades for better bokeh, and an internal-focusing design.
04-14-2009, 09:25 AM   #28
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QuoteOriginally posted by WerTicus Quote
the old version of the lens without hsm was keeping up with the big boys anyway with image quality and ca etc
? We must have seen reviews on different versions. Maybe you're thinking of the Sigma 28-70/2.8 instead of the older non-HSM 24-70/2.8?

The older non-HSM in all mounts (I've seen comments from Canon, Nikon, Pentax users) was less sharp than the Tamron, had horrible flare control, and wasn't as sharp as Canon's 24-70L (which is a few steps below Nikon's 24-70). Some people said they got sharp versions because of Sigma's sample variation, but the flare issue was pretty universally agreed upon...
04-14-2009, 10:40 AM   #29
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Sigma AF 24-70mm f/2.8 EX DG macro (Canon) Lab Test Report / Review

Mines sharp as a tac, almost rivals my fa50 but obviously not quite... not really used it enough to comment on flare.
04-14-2009, 04:53 PM   #30
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oh my the canon people on the other forum do not like this test.
but well in this price it better be better. its even more expensive then the FA*.
and that makes me want the FA* even more (...well if it cheaper then a sigma )
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