Sigma 35mm f/1.4 user feedback needed

Started Jun 10, 2013 | Discussions thread
Mais78
Contributing MemberPosts: 596Gear list
Like?
Outer points focus very innacurate
In reply to M J Valentine, Jul 7, 2013

M J Valentine wrote:

Hi,

I'm thinking of buying a Sigma 35mm f/1.4 to complement a Canon 24-105mm. I am selling my 650D and 15-85 to buy a 6D and plan to use the fast prime for low light and general photography.

I considered buying a Canon 40mm f/2.8 but I am concerned that the extending focusing action may cause dust to enter the camera body so the Sigma 35mm would seem to be a good candidate, especially as it is significantly faster. I have previously used a Canon 35mm f/1.4 but didn't like the purple fringing at f/1.4 which the 650D's Digic V processor couldn't resolve.

I have read many positive reviews about the Sigma 35mm f/1.4 and would be grateful for feedback from owners. Does the lens focus accurately wide open? Any other problems/issues/regrets?

Have you needed to send the lens to Sigma for repairs in the UK? In this regard I have been advised by a well informed source that Sigma UK can take weeks or months to service a lens. Has any other UK Sigma user experienced such delay? I wouldn't want to be without a lens for months while it is adjusted for front/back focusing.

Thanks,

Martyn

I have gone through two copies with same problems:

1. Inconsistent focus

2. On the 6D focusing withe the outer points at f1.4 is very inaccurate. I also did a comparison at f2.8 vs the 40mm pancake and can tell for sure it is an issue of the lens not the camera.

Unfortunately issue 2 makes it unusable, it might be the sharpest 35mm around in lab tests using live view, but if it cannot focus properly in real life what's the point?

 Mais78's gear list:Mais78's gear list
Olympus OM-D E-M5 Canon EOS 6D Tamron SP 24-70mm F/2.8 Di VC USD Canon EF 40mm f/2.8 STM Sigma 35mm F1.4 DG HSM +5 more
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