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Archive 2013 · Sigma 35mm f/1.4 DG HSM - AF
  
 
JPdeR
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p.11 #1 · Sigma 35mm f/1.4 DG HSM - AF


Either the Sigma 35/1.4 has a lot of field curvature, or Sigma haven't figured out the electronic interface with the Canon AF system. Either way, you are better off using the Canon 35mm 2.0 IS or if you really want to focus by hand and get a lot of unfocussed pictures, the Zeiss.


Sep 26, 2013 at 07:51 PM
Lars Johnsson
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p.11 #2 · Sigma 35mm f/1.4 DG HSM - AF


JPdeR wrote:
Either the Sigma 35/1.4 has a lot of field curvature, or Sigma haven't figured out the electronic interface with the Canon AF system. Either way, you are better off using the Canon 35mm 2.0 IS or if you really want to focus by hand and get a lot of unfocussed pictures, the Zeiss.




The Sigma electronic interface works perfect on my Canon 1DX, 1Ds3, 1D4, 1D3 and 100D bodies. And it gives me perfect in focus shots



Sep 26, 2013 at 08:08 PM
JPdeR
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p.11 #3 · Sigma 35mm f/1.4 DG HSM - AF


What kind of test did you perform?


Sep 26, 2013 at 08:12 PM
Lars Johnsson
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p.11 #4 · Sigma 35mm f/1.4 DG HSM - AF


I have been shooting thousends of pics with it since I bought it in January. I have also the FoCal software. And the Sigma USB dock.


Sep 26, 2013 at 08:23 PM
JPdeR
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p.11 #5 · Sigma 35mm f/1.4 DG HSM - AF


OK, so you did not thoroughly test it. Maybe that explains the discrepancies then. But the most important thing is that you are happy with your lens.


Sep 26, 2013 at 08:56 PM
Lars Johnsson
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p.11 #6 · Sigma 35mm f/1.4 DG HSM - AF


JPdeR wrote:
OK, so you did not thoroughly test it. Maybe that explains the discrepancies then. But the most important thing is that you are happy with your lens.


You don't even know what I have done So what should I have done then? You have to tell me and the other members here. Because only you know what to do. Even if you can't get it to work according to your own post
It's not science fiction or very difficult to see if the AF works good on a lens. And if it does work good, you don't even need to do any super testing on it



Sep 26, 2013 at 09:15 PM
Erik_J
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p.11 #7 · Sigma 35mm f/1.4 DG HSM - AF


abqnmusa wrote:
no issues with focus or IQ. Sigma 35mm F1.4 is an excellent lens


+1 An excellent lens with good AF



Sep 26, 2013 at 09:32 PM
 

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joeisayo
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p.11 #8 · Sigma 35mm f/1.4 DG HSM - AF


I tested two Sigma 35 1.4's against my 35L on a 5D3. Both Sigma's were sharper wide open but with a significantly lower AF accuracy rate than the Canon 35L. I ended up buying the Sigma anyways )ordered from B&H) and got burned. The one I purchased had an AF accuracy rate of about 25% vs the ones I shot at the store around 50%. The Canon was dead on everytime.
My Sigma experimenting days are over.



Sep 27, 2013 at 12:02 AM
thw2
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p.11 #9 · Sigma 35mm f/1.4 DG HSM - AF


joeisayo wrote:
My Sigma experimenting days are over.


I gave Sigma AF a second chance when they released their Art series. Alas, they disappointed me. Again.



Sep 27, 2013 at 12:28 AM
jffielde
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p.11 #10 · Sigma 35mm f/1.4 DG HSM - AF


Mine has unusably inconsistent AF. Darn it. It's otherwise a magnificent lens. But still unusable.


Sep 27, 2013 at 01:17 AM
abqnmusa
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p.11 #11 · Sigma 35mm f/1.4 DG HSM - AF


no measurbation here
just go out and take pictures with the Sigma 35mm F1.4
pictures are in focus and good IQ


may the get the USB dock to allow firmware update



Sep 27, 2013 at 03:46 AM
Lasse Eriksson
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p.11 #12 · Sigma 35mm f/1.4 DG HSM - AF


The Sigma is an excellent lens. And every review and test confirms that. Every photo magazin is also praising the lens. So it's an easy choice if you like to have the best fast 35mm lens for a rather low price


Sep 27, 2013 at 06:19 AM
jffielde
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p.11 #13 · Sigma 35mm f/1.4 DG HSM - AF


I just sent mine in for calibration along with the dock. I would say there's a good bit of evidence that there are a few AF issues with the 35mm Art, but probably not that many in the grand scheme of things. We'll see if Sigma does me right!


Sep 27, 2013 at 01:36 PM
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