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| p.19 #20 · Sigma 35mm f/1.4 DG HSM first impressions |
Low light AF has been outstanding if you have any contrast at all. I have been using it combined with flash/softbox around the house in very low light conditions with good results. You can check my flickr for a few shots. It is clear which ones they are.
I am reluctant to say anything about the use of AI servo with this lens as my VERY limited trial with it has not been as successful as my canon lenses have been with very fast moving targets. Think dogs running right at you or kids on swings. It has worked, but not as well as the canon lenses...yet! I use a 5D3. So I don't want to start too much chitter chatter about this issue. I guess it is fair to say that I am still on the fence with AI servo and the siggy 35 until further testing.
Thanks for sharing the images and I appreciate your candor about the Sigma handling AI Servo .
Well, I 'm back to report that just as of about 5 minutes ago I was very pleasantly surprised by the performance of this siggy 35 and AI servo. The light right now is terrible. It is near dusk and overcast. I used the 5D3 + siggy 35 @ 1.8 in Av mode, ISO 1600, AI Servo, single point AF, both single shot and slow burst continuous and was getting SS's between 1/500 and 1/1250 with many between 1/500 and 1/640th. I took 52 photos of the 7 year old in the photo above. I asked her to start running straight at me and then pass directly by me anywhere from approx. 1.5 to 3 meters out. I was very careful to keep the AF point on her head but not successful 100% of the time. Out of the 52 shots, I would say 75% of them were dead on. That leaves 25% OOF d/t either user error or AF error. Bottom line.....I'm sold. I think given even half way decent light and some skill, any owner of a camera with a killer AF system such as the 5D3 will be very happy with the performance of the sigma 35 1.4 and AI servo. I have to say that if anyone is on the fence about this lens and is in the market for a 35mm prime, this is one to seriously consider.
I will not bore you or take up bandwidth with the test shots.