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Old 20th of February 2009 (Fri)   #1
Tony-S
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Default Sigma 24-70 f/2.8 EX HSM

The new HSM model is now available, and I'm still learning how to use it...

Here's a shot at 70mm, f/2.8, 1/80", ISO 200 on the 5Dii with the 580EX II and Stofen attached. The lens is capable of very creamy bokeh, is a little warm, but easily managed. In this shot, I bumped up the blue channel +15, did a curves adjustment with just the tiniest 'S' curve, then did a 100/2/3 unsharp mask. EXIF data should be intact.
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File Type: jpg ash2.jpg (143.3 KB, 6513 views)
File Type: jpg ash2-crop.jpg (132.9 KB, 6465 views)
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Old 24th of February 2009 (Tue)   #2
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Default Re: Sigma 24-70 f/2.8 EX HSM

wow.. almost $500 more for HSM?? that's insane!!

is there any other advantage over the non HSM version?
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Old 24th of February 2009 (Tue)   #3
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Default Re: Sigma 24-70 f/2.8 EX HSM

Quote:
Originally Posted by joruiz View Post
wow.. almost $500 more for HSM?? that's insane!!
I think they're principally aiming it at the Noink crowd (almost $1,700 for their 24-70 f/2.8 ), but keeping it in range of the brick ($1,200) for us Canon folk. I suspect it'll be down to $800 or $750 in a year from now. But it's tough to know for sure.

Quote:
is there any other advantage over the non HSM version?
It is more compact (it's tiny compared to the brick) and supposedly has better optics. I've not seen the non-HSM model so I cannot provide a direct comparison. The zoom is also in the opposite direction from the non-HSM (and now the same as Canon's). It sure feels beefy. I'm hoping to get out for more shots, but work has me rather swamped ATM.
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Last edited by Tony-S : 13th of July 2009 (Mon) at 21:21.
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Old 25th of February 2009 (Wed)   #4
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Default Re: Sigma 24-70 f/2.8 EX HSM

How is the weight on this lens? How about the build and quality?
I was looking at it on the BH site. It looks small.
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Old 26th of February 2009 (Thu)   #5
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Default Re: Sigma 24-70 f/2.8 EX HSM

It is very nice and compact - a lot smaller than the brick and Noink's 28-70. It has the typical Sigma EX build and feels quite solid.
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Old 26th of February 2009 (Thu)   #6
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Default Re: Sigma 24-70 f/2.8 EX HSM

post more pictures i want to get lens!
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Old 26th of February 2009 (Thu)   #7
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Default Re: Sigma 24-70 f/2.8 EX HSM

can you post unprocessed image at 100% crop?

tanks in advance...
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Old 26th of February 2009 (Thu)   #8
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Default Re: Sigma 24-70 f/2.8 EX HSM

Here's a full-frame (5Dii) and 100% crop unprocessed at f/2.8 and 70mm. I don't have too many others yet. It is warm, which is typical of Sigma lenses, but otherwise I'm very, very pleased with it.
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File Type: jpg sig24-70-unproc.jpg (101.7 KB, 6285 views)
File Type: jpg sig24-70-unproc-crop.jpg (137.6 KB, 6283 views)
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Last edited by Tony-S : 26th of February 2009 (Thu) at 21:24.
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Old 26th of February 2009 (Thu)   #9
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Default Re: Sigma 24-70 f/2.8 EX HSM

This 70mm series is from f/2.8 to f/8, shot from a bit further away than the previous images (around 8 feet to subject) on the 5Dii. Other than levels adjustment, no pp applied. As you can see, contrast and sharpness improve as the aperture gets smaller.

f/2.8:
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File Type: jpg sig-f28.jpg (126.3 KB, 6245 views)
File Type: jpg sig-f28-crop.jpg (116.8 KB, 6197 views)
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Last edited by Tony-S : 26th of February 2009 (Thu) at 21:25.
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Old 26th of February 2009 (Thu)   #10
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Default Re: Sigma 24-70 f/2.8 EX HSM

f/4:
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File Type: jpg sig-f4-crop.jpg (148.4 KB, 6077 views)
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Old 26th of February 2009 (Thu)   #11
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Default Re: Sigma 24-70 f/2.8 EX HSM

f/5.6:
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File Type: jpg sig-f56-crop.jpg (125.5 KB, 5996 views)
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Old 26th of February 2009 (Thu)   #12
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Default Re: Sigma 24-70 f/2.8 EX HSM

And f/8:
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File Type: jpg sig-f8-crop.jpg (131.6 KB, 5936 views)
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Old 28th of February 2009 (Sat)   #13
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Default Re: Sigma 24-70 f/2.8 EX HSM

I've spent some time with the lens today and here are a few observations:

1. The lens has excellent control of chromatic aberration - there is virtually none.
2. It has excellent flare control (better than my 17-40L) and the hood does a very good job of mitigating flare.
3. It vignettes at 70mm until f/8, and 50mm until f/4.

A couple from today.
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File Type: jpg nic1 (1).jpg (96.0 KB, 5853 views)
File Type: jpg church (4).jpg (124.2 KB, 5853 views)
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Old 28th of February 2009 (Sat)   #14
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Default Re: Sigma 24-70 f/2.8 EX HSM

And a couple more.
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File Type: jpg room.jpg (117.1 KB, 5804 views)
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Old 28th of February 2009 (Sat)   #15
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Default Re: Sigma 24-70 f/2.8 EX HSM

i wish i had enough for the hsm one aha i had to settle for the macro its so noisey!! but ehh it works. im liking the samples in here already, might have to upgrade to this one in the future
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