70d and sigma 50mm 1.4 non art, anyone?

Scoobert wrote in post #17145993
Maybe drop them an email and ask for a compatibility list for the 70D?

I have that in mind, but I want to supplement everything with those using the lens.
EDIT: Thanks.

Scoobert wrote in post #17145916
Here is an email I got from tamron.

Is that enough proof there are some compatibility issues?

I wasn't looking for "proof" per se as I wasn't questioning what the OP had stated, just desired some clarification. I was previously only aware of issues specifically with Tamron lenses and more often than not in video mode as opposed to still images. Having said that it appears that these issues are being properly addressed by Tamron and other manufacturers as well. One has to remember that Canon does not test a camera body design with 3rd party lenses. It is, so to speak, a "one way street" in that the lens manufacturer must test his lenses with the camera and reverse engineer as needed.

For what it is worth, the site http://www.cameraegg.o​rg …lenses-for-canon-eos-70d/ seems to indicate the Sigma Sigma 50mm F1.4 EX DG HSM is compatible with the 70D. Not sure if that is what the OP is referring to when he speaks of a non-art 50mm 1.4.

John from PA wrote in post #17146033
I wasn't looking for "proof" per se as I wasn't questioning what the OP had stated, just desired some clarification. I was previously only aware of issues specifically with Tamron lenses and more often than not in video mode as opposed to still images. Having said that it appears that these issues are being properly addressed by Tamron and other manufacturers as well. One has to remember that Canon does not test a camera body design with 3rd party lenses. It is, so to speak, a "one way street" in that the lens manufacturer must test his lenses with the camera and reverse engineer as needed.

For what it is worth, the site http://www.cameraegg.o​rg …lenses-for-canon-eos-70d/ seems to indicate the Sigma Sigma 50mm F1.4 EX DG HSM is compatible with the 70D. Not sure if that is what the OP is referring to when he speaks of a non-art 50mm 1.4.

Yes John, that's the lens I intend to include in my bag.

John from PA wrote in post #17146033
I wasn't looking for "proof" per se as I wasn't questioning what the OP had stated, just desired some clarification. I was previously only aware of issues specifically with Tamron lenses and more often than not in video mode as opposed to still images. Having said that it appears that these issues are being properly addressed by Tamron and other manufacturers as well. One has to remember that Canon does not test a camera body design with 3rd party lenses. It is, so to speak, a "one way street" in that the lens manufacturer must test his lenses with the camera and reverse engineer as needed.

For what it is worth, the site http://www.cameraegg.o​rg …lenses-for-canon-eos-70d/ seems to indicate the Sigma Sigma 50mm F1.4 EX DG HSM is compatible with the 70D. Not sure if that is what the OP is referring to when he speaks of a non-art 50mm 1.4.

My bad John, after re -reading your response I stand corrected.

I read it as you were questioning that their are compatibility issues. With the "supposedly" That was not the case.

My apologies

I emailed sigma last night and got a quick reply from. Good thing that they stated its fully compatible with the 70d. I guess that answers my concern. Now is just a matter of its performance but seeing samples of its product (lens photo sample archive) tells that this glass is a great one for its price.

@rebelsimon: I was thinking about what you said, trouble in tracking in subject's moving closer. Did you mean like the subject is walking towards you or something like tracking a fast paced object (lets say a child running towards the camera)?

If I track a couple walking towards me (centre-point, AI Servo) in anything less than perfect light, I get a better keeper rate on my 50-150mm. I find my sigma zooms slightly more consistent than my primes, until it gets too dark to lock focus and the camera needs the 1.4 I haven't tried the Art series.

jimeuph1 wrote in post #17145578
I have the 70d and I rented the sigma 50 non art, it works fine. But the Art versions are in another league.

Between the 85 and the 50? The 50 is more versatile, but on a crop camera I have found 35mm to be a better fit.

I have had 30mm f1.4, sigma 35mm art, 35L, 50mm f1.4 non art, canon 50mm f1.4, sigma 85mm f1.4, 85L II and all are very very close if you got good bodies. So can't imagine sigma 50mm f1.4 art to be that much better. For the record my sigmas (30 and 85 non art) were as sharp or sharper @f1.4 than 135mm f2 @f2.

Personally I will stick that 50mm on even old 5dc and be happy unless I was shooting really high ISOs.