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FORUMS Canon Cameras, Lenses & Accessories Canon EF and EF-S Lenses 
Thread started 22 Mar 2013 (Friday) 13:42
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Is there any reason to get the Canon 35/1.4 over the Sigma?

 
WT21
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Apr 10, 2013 11:49 |  #46

Glad I ended up getting the Canon :)


6D: 50, 85, 28-75, 70-210USM, 430EXii.
EOS-M: 22, 18-55

  
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dancook
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Apr 10, 2013 11:51 |  #47

Glad I got the cz :) avoided the samyang I didnt want too




  
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mikeinctown
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Apr 10, 2013 12:29 |  #48

I've had a Canon tester through CPS for the last week to do side by side testing with my new sigma. One thing i've noticed is that the sigma seems to be sharper when focus hits. in looking at some shots from lunch today, the Canon lens shows colors more accurately. That is background colors tend to be more realistic and brighter. However, the Sigma does accurately represent the colors, but photos taken at the same settings and same distance seem to be slightly underexposed as opposed to the Canon. In two test shots taken of a green gas natural gas line with a light brown colored wall in the background yielded the green being very vivid with both, but the background wall being far brighter with the Canon, at least in initial viewing.

the two lenses have very different front glass. the Canon lens is larger and more flat, while the Sigma is smaller with a much more pronounced curve. The canon hood is also far wider than the Sigma. This may have something to do with the brightness, as more light may be getting into te Canon lens.

While I love the Sigma when it hits focus, even after an AF software update by sigma I am still having issues. I went and tested yesterday and out of 20-30 shots I only had a handful that were actually in focus. (noon sunlight, large object for focusing, resulting in high shutter speeds, so camera movement wouldn't be of any factor)




  
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snake0ape
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Apr 10, 2013 12:31 |  #49

Auto focus technology is changing. And communication between the camera body and the lens is more important than ever before. Especially when the new canon lens are now part of a "close loop" system. I think that is why Sigma is coming out with the USB dock. Firmware upgrades to a lens is going to be vital especially for third party lens. A good optical copy is just part of the equation. I heard canon had problems with their own 200mm f/2 pairing with the 5Diii and a firmware upgrade was necessary to get the AF corrected. For Sigma, that has to be in the lens since I doubt Canon will fix it for them on the body firmware.


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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phatrick
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Apr 10, 2013 18:20 |  #50

People keep thinking that if they buy this one lens, it'll correctly 100% af on the exact spot they metered 100% of the time on any of the bodies they own.


5D Mark II | Tokina 10-17mm | 24-70L | 35Σ | 50L | 85L | 135L

  
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mikeinctown
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Apr 10, 2013 20:51 |  #51

phatrick wrote in post #15813503 (external link)
People keep thinking that if they buy this one lens, it'll correctly 100% af on the exact spot they metered 100% of the time on any of the bodies they own.

It would be nice to do better than 25% of the time though, especially when one has taken the time to try and actually set the MA up correctly.




  
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snake0ape
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Apr 10, 2013 21:00 |  #52

phatrick wrote in post #15813503 (external link)
People keep thinking that if they buy this one lens, it'll correctly 100% af on the exact spot they metered 100% of the time on any of the bodies they own.

I am certain in the future, that expectation will be taken for granted. For now, I am happy if I get 75% now. However, its really disappointing if it's worse than what you upgraded from.


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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Luta13
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Apr 10, 2013 22:23 |  #53

mikeinctown wrote in post #15813965 (external link)
It would be nice to do better than 25% of the time though, especially when one has taken the time to try and actually set the MA up correctly.

snake0ape wrote in post #15814009 (external link)
I am certain in the future, that expectation will be taken for granted. For now, I am happy if I get 75% now. However, its really disappointing if it's worse than what you upgraded from.

If you are getting 25%-75% of your shots hitting focus and you know it is the lens and not the AF settings, an outdated camera body, or a one-time crazy fast/variable shooting condition, why isn't this lens being sent back? Those numbers are not acceptable. Not in any way.


- Mike -
http://www.flickr.com/​photos/luta_foto/ (external link)

  
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snake0ape
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Apr 11, 2013 00:13 |  #54

Luta13 wrote in post #15814385 (external link)
If you are getting 25%-75% of your shots hitting focus and you know it is the lens and not the AF settings, an outdated camera body, or a one-time crazy fast/variable shooting condition, why isn't this lens being sent back? Those numbers are not acceptable. Not in any way.

Im being conservative with my percentage. using f1.2 or f1.4, I get 90% hit rate for stills and 50% hit rate for running kids. At 2.8, its 99%. You could not get this high success rate with the older canon AF focus systems esp with running kids. It is just my Sig50 I have to solve its AF communication with my 5Diii.


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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phatrick
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Apr 11, 2013 21:53 |  #55

snake0ape wrote in post #15814009 (external link)
I am certain in the future, that expectation will be taken for granted. For now, I am happy if I get 75% now. However, its really disappointing if it's worse than what you upgraded from.

With body calibrations being adjusted, I don't think you can do this pre-calibration. I think thats what 75% of these people complain about.

Now for the remaining 25% I know what their complaint is, I own a sigma 50mm, and GOD does it mis focus a lot. But that's just the way it is and I've come to accept that. Even with calibration, sometimes we miss shots. Thats why I take doubles of important shtos with a refocus in between.

I think even with L primes, we mis focus, but because we're not used to it, we like to blame ourselves. While with the Sigma, there's a lot of crap given on it over the internet, so we like to first assume it's the lenses fault. I'll admit, I bet half the time I misfocus it's because I'm wide open and used center focus, focused on the subject and then moved my frame elsewhere.

I completely agree that sometimes I feel like I miss 90% of the shots, and sometimes I miss none. Same lighting conditions. Which makes me think it MIGHT just be me sometimes :)


5D Mark II | Tokina 10-17mm | 24-70L | 35Σ | 50L | 85L | 135L

  
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Is there any reason to get the Canon 35/1.4 over the Sigma?
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