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FORUMS Canon Cameras, Lenses & Accessories Canon EF and EF-S Lenses 
Thread started 20 Oct 2010 (Wednesday) 10:53
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does the sigma 17-70 OS have better IQ then non OS?

 
Nickc84
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Oct 23, 2010 12:01 |  #31

locky wrote in post #11149549 (external link)
I did have the Tamron 17-50 non VC which was sharp but my version seemed to be soft on the right side of the images. I actually was looking for another one when a good deal came along on the Sigma 17-70 OS so I jumped on that. So far I really am happy with it. I have 2 more shoots this weekend that should help me determine if it's staying or going. But so far its staying.

Do you have anymore samples from your first shoot?




  
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Stir ­ Fry ­ A ­ Lot
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Oct 23, 2010 12:04 |  #32

I wouldn't worry about the Tamron VC. The one I played with had a terrible focus ring and its not nearly as sharp as the non-VC version. Be happy with what you have. If you're really set on having a different lens then start saving up for the Canon 17/55, t's worth every penny paid for it. I sold my Sigma 17/50 OS for it and couldn't be any happier.


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Nickc84
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Oct 24, 2010 15:10 |  #33

Took this today in my dark living room hand held at 1/20th with minor pp


IMAGE NOT FOUND
IMAGE IS A REDIRECT OR MISSING!
HTTP response: NOT FOUND | MIME changed to 'image/gif' | Redirected to error image by FLICKR

IMG_1224 daisy (external link) by NEC Photography (external link), on Flickr



  
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leoni
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Oct 26, 2010 02:38 |  #34

which is the best from

tamron 17-50 non VC
sigma 17-70 OS and non OS version
canon 18-55 IS

please note that i want to upgrade from canon 18-55 IS because of image quality and low aperture

thank you


Canon 6d with Canon 16-35F4 IS, Canon 50 1.8STM, Canon 85 1.8 , 70-200mm F4 L,

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egordon99
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Oct 26, 2010 05:24 |  #35

leoni wrote in post #11166198 (external link)
which is the best from

tamron 17-50 non VC
sigma 17-70 OS and non OS version
canon 18-55 IS

please note that i want to upgrade from canon 18-55 IS because of image quality and low aperture

thank you

Well I would toss out the 18-55 and 17-70 as they are slow (f/5.6 and f/4 at the long end)

That leaves the Tamron 17-50 f/2.8 which seems to be a nice lens at a good price.




  
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leoni
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Oct 26, 2010 06:18 |  #36

Hi
f4 for me is ok ( i have speedlite 430 for indoors) but for me image quality and AF is very important

the new lens will be used for events ( party, weddings) and walk around on crop body ( 450d or 550d this will be body)


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Nickc84
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Oct 26, 2010 07:34 |  #37

Loni, I am not sure how the image quality compares to the lenses above since I have never owned one but the IQ on this lens seems awesome on my 7D and the range is important for me on a crop body. I dont know how fast the AF would be on a 550D but its lighting fast on my 7D and focuses good in low light. I am doing an engagement shoot soon and I will post them on here.




  
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KenjiS
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Oct 26, 2010 07:55 |  #38

leoni wrote in post #11166747 (external link)
Hi
f4 for me is ok ( i have speedlite 430 for indoors) but for me image quality and AF is very important

the new lens will be used for events ( party, weddings) and walk around on crop body ( 450d or 550d this will be body)

17-70 to me is a walkaround, 17-50 is not

Walkaround = 24-105mm or 28-135mm equivalent

General Purpose Zoom = 28-80mm, 24-70mm equivalent


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leoni
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Oct 26, 2010 09:19 |  #39

KenjiS wrote in post #11167035 (external link)
17-70 to me is a walkaround, 17-50 is not

Walkaround = 24-105mm or 28-135mm equivalent

General Purpose Zoom = 28-80mm, 24-70mm equivalent


Ok, a meant General Purpose Zoom beacuse i already have 50 1.8 and tokina 100 macro and i want to buy also a tele ( 55-250 is/ tamron 70-300 VC or 70-200 f4 L)

in my budget are included only these above lenses ( and sigma 18-50 2,8 but i think tamron is better)

reason why i'm looking for sigma is regarding AF

thank you for other advice


Canon 6d with Canon 16-35F4 IS, Canon 50 1.8STM, Canon 85 1.8 , 70-200mm F4 L,

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Nickc84
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Oct 26, 2010 09:47 |  #40

Here is video I just took in my room with no lights on.

http://www.flickr.com …icholascaputo/5​117940256/ (external link)




  
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Nickc84
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Oct 26, 2010 11:25 |  #41

Here is a better one..

http://www.flickr.com …icholascaputo/5​118179746/ (external link)




  
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KenjiS
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Oct 28, 2010 00:53 |  #42

leoni wrote in post #11167401 (external link)
Ok, a meant General Purpose Zoom beacuse i already have 50 1.8 and tokina 100 macro and i want to buy also a tele ( 55-250 is/ tamron 70-300 VC or 70-200 f4 L)

in my budget are included only these above lenses ( and sigma 18-50 2,8 but i think tamron is better)

reason why i'm looking for sigma is regarding AF

thank you for other advice

Then personally i'd have the Sigma 17-50 f/2.8 OS


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leoni
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Oct 28, 2010 06:17 |  #43

yes, but Sigma 17-50 f/2.8 OS is not included in by budget.

the decision will be these 2 sigma and tamron 17-50 2.08 non VC

OR to stay with canon 18-55is but i dont like the CA , distorsion and softness at 55mm

thank you for advice


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VeijoM
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Oct 28, 2010 12:44 |  #44

Hi leoni!

I have the Sigma 17-70 OS HSM and like the lens very much. I have had different lenses in my past, primes and zooms. I somehow always end up keeping it simple and having one zoom that covers the most used focal range and this Sigma has filled it's purpose fine. I find the lens sharp enough, it's bokeh is very nice, very much consistent with other good Sigma's and it's OS is very effective. I had before a Pentax K20D which has in-body stabilisation, and this lens has better stabilisation. I use the lens primarily as a constant aperture f4 lens (I use aperture priority most of times), going to other apertures if needed, but this way I do not need to think about the aperture change. f4 is very acceptable for the whole range and the bokeh is not getting bad at this aperture.

I have some pics on my flickr stream, all the recent pics are taken with this lens.
http://www.flickr.com/​photos/35883172@N02/ (external link)

I hope you make your choice wisely, so you do not need to pay again to get some other zoom to fill this range. I personally took this lens happily over the Tamron 17-50 VC for better range, better reviews, good bokeh and the lens also had "better feel" in my hands and in use than the Tamron (and looked better and even sounded better :-). I personally would not choose a zoom for Canon without IS (or OS).

-Veijo-


70D. EF 70-300mm L, Tamron 90mm F2.8 VC and Sigma 17-50mm F2.8 OS HSM.

  
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