SIGMA 50-100/1.8 ART: first impressions

Started 6 months ago | Discussions thread
OP Jura S Senior Member • Posts: 1,470
Re: SIGMA 50-100/1.8 ART: first impressions

kaihinlam wrote:

Some thought on this lens:

1. You are lucky that you got a copy that focuses properly. When I got my lens and test it in the camera store, everything was fine. However in the field I find that the focus at infinity is way off. In body adjustments don't work as if you set for infinity the close focus is wrong again. I sent it back to Sigma and they adjusted the MFD and infinity focus, but everything in between is off, and they dared to tell me it is normal. So I had to buy the USB dock, and spent a few hours to get it all right.

I've expected that the lens would need some tuning but it was perfect out of the box.

3. This is probably the sharpness lens I have ever used.

Goes the same here. It's sharper at 100mm f/1.8 than Canon 100/2.8 L IS USM at f/2.8.

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