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FORUMS Canon Cameras, Lenses & Accessories Canon EF and EF-S Lenses 
Thread started 17 Sep 2012 (Monday) 13:11
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New Sigma 35mm f/1.4 HSM DG

 
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Jun 09, 2013 02:37 |  #3091

snake0ape wrote in post #16009660 (external link)
Yeah, maybe I can get my money back by dot-tuning everybody's messed up 35 in LA, ha.

haha I might be willing to pay you to fine-tune my copy...


Canon 6D | Σ 35mm f/1.4 | Canon 17-40mm L | Canon 85mm f/1.8 | Σ 10-20mm f/4-5.6

  
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x0ny
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Jun 09, 2013 18:44 |  #3092

Maybe it's just me and being new to this lens, but has anyone notice it going soft at infinity focus wide open? Is it just the nature of 1.4 aperture to not be clear at infinity focus? It does clear up a bit at f2.8. At MFD - 2m, its sharp wide open but not at infinity.

edit - After reading I learned that 1.4 lenses are generally not meant to be shot wide open at infinity, silly noob me.


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Sirrith
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Jun 09, 2013 19:20 |  #3093

Mine is the same sharpness at infinity (or just far away since I don't know where infinity is) when AF-ing or MF-ing, which means there is no focus issue. It is however, slightly softer at those distances than closer up. Which is entirely normal :)


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sharad.medhavi
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Jun 10, 2013 01:51 |  #3094

The Sigma seems to be focusing fine on my 5D III.
Here are two shots, both wide open. The first one is from a moving van, focused on a truck far off (don't miss the bird flying across the windscreen). The second one is of a Water Lilly up close.
(Also posted in the lens photo archive thread)

IMAGE: http://farm4.staticflickr.com/3796/9002863409_64b91da72d_b.jpg
IMAGE LINK: http://www.flickr.com …harad_medhavi/9​002863409/  (external link)
Sigma 35mm f/1.4 DG HSM Art, shot wide open from a moving van (external link) by Sharad Medhavi (external link), on Flickr

IMAGE: http://farm4.staticflickr.com/3775/9004039514_c2d29e265c_b.jpg
IMAGE LINK: http://www.flickr.com …harad_medhavi/9​004039514/  (external link)
Sigma 35mm f/1.4 DG HSM Art, shot wide open up close (external link) by Sharad Medhavi (external link), on Flickr

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Canon 5D Mark III | 24-105mm f/4.0 L IS, 85mm f/1.2L II, 135mm f/2L, 100mm f/2.8L IS, 50mm f/1.4, 17-40mm f/4L, 70-200mm f/4 L IS, 100-400mm f/4.5-5.6 L IS, Sigma 35mm f/1.4 Art, Rokinon 14 2.8

  
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Arob1000
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Jun 10, 2013 21:35 |  #3095

Here's a review of the dock by Roger and Lensrentals, the dock looks legit!

http://www.lensrentals​.com …mization-pro-and-usb-dock (external link)


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kimboy
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Jun 10, 2013 22:03 as a reply to  @ Arob1000's post |  #3096

IMAGE: http://farm3.staticflickr.com/2861/8911812459_b2051e348f_b.jpg
IMAGE LINK: http://www.flickr.com …/41275912@N00/8​911812459/  (external link) dwaaziwaazi (external link), on Flickr

Engagement photo of my friends. Gotta love this lens.



  
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x0ny
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Jun 11, 2013 20:18 |  #3097

Could anyone email me a RAW file of your sharpest picture open wide? I want to compare it to my copy of the lens because I feel as if my copy is soft when I compare it to some of the wide images in the sample archive. Maybe I'm just pixel peeping too much on my pictures...I just want to know if its my lens or if I just need to get use to shooting 1.4 and master this.


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Vixen89
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Jun 13, 2013 11:09 |  #3098

I read the review on the Sigma USB dock but it doesn't really say if it can fix the focusing problem in artificial light? Anybody actually use the sucker?


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pankajkumars
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Jun 14, 2013 05:24 |  #3099

kimboy wrote in post #16019059 (external link)
QUOTED IMAGE
IMAGE LINK: http://www.flickr.com …/41275912@N00/8​911812459/  (external link) dwaaziwaazi (external link), on Flickr

Engagement photo of my friends. Gotta love this lens.

Beautiful frame and light.


5D MK IV + 5D MK II | 24-85 | 35L | 85mm 1.2 IIL | 70-200 2.8 IS II L , Olympus EM5 II + PL25mm 1.4
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snake0ape
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Jun 14, 2013 07:47 |  #3100

Vixen89 wrote in post #16027478 (external link)
I read the review on the Sigma USB dock but it doesn't really say if it can fix the focusing problem in artificial light? Anybody actually use the sucker?

Two things the USB can do for 35mm.
1. Firmware update. There is a new one. Not sure when it was produced. This may or may not fix issues with artificial lights. My sig35 bought last week had the latest update already. My sig does not have artificial light focus shift problems.
2. Can add 4 focus adjust numbers at the fixed focus distance of 12", 16", 26" and infinity.
From the half dozen or so people who posted their results, including myself, MAing these 4 points helped significantly to get ultra sharp focus from 12" to infinity.

My sig50 had significant focus shift in artificial lights. I sent it to sigma NY for a courtesy firmware update and with a note regarding the focus shift at artificial lights. I got it back fixed.


5Diii | 50D | 8-15L 4| 16-35L 2.8 II| 24-70L 2.8 II | 70-200L 2.8 IS II |Tamy 150-600 | Σ35Art 1.4 | 40 2.8 | Σ50Art 1.4 | 85L 1.2 II | 100 2.8 Macro | Helios 44-3 58mm f2.0 |Helios 40-1 85mm f1.5 | 1.4x & 2x teleconverters

  
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Vixen89
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Jun 14, 2013 10:11 |  #3101

snake0ape wrote in post #16030079 (external link)
Two things the USB can do for 35mm.
1. Firmware update. There is a new one. Not sure when it was produced. This may or may not fix issues with artificial lights. My sig35 bought last week had the latest update already. My sig does not have artificial light focus shift problems.
2. Can add 4 focus adjust numbers at the fixed focus distance of 12", 16", 26" and infinity.
From the half dozen or so people who posted their results, including myself, MAing these 4 points helped significantly to get ultra sharp focus from 12" to infinity.

My sig50 had significant focus shift in artificial lights. I sent it to sigma NY for a courtesy firmware update and with a note regarding the focus shift at artificial lights. I got it back fixed.

Thank you for your response, I think I feel better re-buying the Sigma a 2nd time around and fiddlin' with it.


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Maverique
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Jun 14, 2013 15:43 |  #3102

I'd imagine that those firmware updates can be used too as new cameras come out that may break compatibility.


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JNowakPhoto
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Jun 14, 2013 20:07 as a reply to  @ Maverique's post |  #3103

Looks like mine needed the following adj:

0.3 +10
0.4 +11
0.6 +12
Inf +1

weird........


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x0ny
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Jun 15, 2013 01:43 |  #3104

Looks like Im going to need this dock, I MA for +8 at .3 but then it messes up Inf which needs 0! No wonder my infinity shots were out of whack.


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smythie
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Jun 15, 2013 02:01 |  #3105

Just ordered an F mount version. A little excited. Only a week to wait. ?!


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New Sigma 35mm f/1.4 HSM DG
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