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Thread started 20 Feb 2009 (Friday) 21:14
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Sigma 24-70 f/2.8 EX HSM

 
Tony-S
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Feb 28, 2009 13:40 as a reply to post 7425710 |  #16

Here's the vignetting at 70mm comparing f/2.8, f/4, f/5.6 and f/8. The second image is the f/2.8 shot with devignetting applied in Aperture. I now have a preset for this, so it's pretty quick to remove from multiple images.

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Tony-S
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Feb 28, 2009 13:51 |  #17

jcp2000 wrote in post #7425717external link
i wish i had enough for the hsm one aha i had to settle for the macro its so noisey!! but ehh it works.

This is all that matters, anyway; so if it works then that's great.

I'm hooked on USM/HSM, which is one of the reasons I chose the Sigma over the Canon. $300 more in my pocket was another reason. :)


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jcp2000
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Mar 01, 2009 03:44 |  #18

i am too but im sure if i can save enough i will go with the L if not hsm it is. im already loving the focal length im happy i sold my 50mm for this


Canon 7D, Sigma 24-70 f2.8 EX DG, Vivitar 285HV, AlienBees B800, Vagabond II, Cactus V2s, SLIK Able 300 DX

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poah
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Mar 06, 2009 09:19 |  #19

here are some samples straight from the camera with sharpness set to 7.

taken with a 5dmk2 iso 100 links are full sized jpegs


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tuan209
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Mar 09, 2009 19:50 |  #20

Any more updates Tony?? I am seriously considering this lens.




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Tony-S
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Mar 09, 2009 21:13 |  #21

I am extremely happy with it. The only issue is the full frame vignetting noted above that is easily and quickly rectified in pp. It will be with me for some time.


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jcp2000
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Mar 10, 2009 16:23 |  #22

why is the macro version of this lens thread suck!! aha no one posts but me getting boring. i think i have to switch over to the hsm now!! (if i had the money ha)


Canon 7D, Sigma 24-70 f2.8 EX DG, Vivitar 285HV, AlienBees B800, Vagabond II, Cactus V2s, SLIK Able 300 DX

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Kruzkal
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Mar 10, 2009 16:51 |  #23

How is the AF of this lens? I am also very interested in this lens. It is one of the reasons why I have yet to purchase the Canon L.




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poah
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Mar 11, 2009 05:36 |  #24

I had to dial in some miroadjust on my 5dmk2 not tried it on my 40 or 20D yet


vignetting on FF quite large but its simple to fix in raw


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rjg5
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Mar 11, 2009 13:45 |  #25

Any one have thoughts or experience of this vs. the tamron 28-75


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Gliderparentntn
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Mar 13, 2009 12:18 |  #26

you keep discussing the viginetting on a FF what about a crop body? i use the 1.6 and 1.3 bodies.... anyone notice it with either crop body?


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1DMKIII, 1DsMKIII, 17-40L, 24-70L[COLOR=black], 135[COLOR=red]L, 70-200 f/2.8L IS,200L, 300 f/4L IS, 400 5.6L, 600L, 85 f/1.8, 100 macro, Sigma 50mm f/1.4 HSM, Sigma 85mm 1.4 HSM, 1.4xII + extension tubes, MPe65

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Tony-S
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Mar 13, 2009 12:39 |  #27

Gliderparentntn wrote in post #7516514external link
you keep discussing the viginetting on a FF what about a crop body? i use the 1.6 and 1.3 bodies.... anyone notice it with either crop body?

I doubt there's any vignetting on a crop sensor camera. The vignetting on FF is only in the far corners.


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Gliderparentntn
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Mar 13, 2009 12:57 |  #28

Thanks Tony I'm going to look into this lens and as you save 300.00 unless i can find the Canon cheap enough then I'll just go Canon


James
1DMKIII, 1DsMKIII, 17-40L, 24-70L[COLOR=black], 135[COLOR=red]L, 70-200 f/2.8L IS,200L, 300 f/4L IS, 400 5.6L, 600L, 85 f/1.8, 100 macro, Sigma 50mm f/1.4 HSM, Sigma 85mm 1.4 HSM, 1.4xII + extension tubes, MPe65

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Contra
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Mar 13, 2009 15:19 |  #29

Tony, Don't you find that bokeh is ugly with this lens?
I am looking at the bench shot, where background is complicated and challenging for lens bokeh capabilities. I wonder whether you shot the same scene with this Sigma and 50mm and compared its bokeh? After all, bokeh is one of the most important factors.




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Tony-S
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Mar 13, 2009 20:24 |  #30

Contra wrote in post #7517630 (external link)
Tony, Don't you find that bokeh is ugly with this lens?
I am looking at the bench shot, where background is complicated and challenging for lens bokeh capabilities. I wonder whether you shot the same scene with this Sigma and 50mm and compared its bokeh? After all, bokeh is one of the most important factors.

It seems to be ok. Here are a few others and a crop showing the 9 blades. There's a bit of a halo to the very bright spots, but I think it does fine.

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Sigma 24-70 f/2.8 EX HSM
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