LensTip.com

Lens review

Sigma 105 mm f/2.8 EX DG Macro

5 May 2010
Arkadiusz Olech

10. Autofocus



Please Support Us

The coronavirus crisis has been adversely affecting many businesses and, sad but true, ours is not an exception. Despite that difficult situation we would like to preserve continuity and high quality of publications available on all our websites. Still, we are now aware it might be impossible without additional financial help. That's why we would like to ask all those who visit, read, and care about Optyczne.pl, LensTip.com i Allbinos.com for support - it's enough you send us a small sum of money via PayPal. If a lot people decide to support our websites we think we'll stand a chance and survive next months without any lasting harm. We count on your support and understanding, stay safe and be healthy.

- - - - - - - - - - - - - - - - - advertisement - - - - - - - - - - - - - - - - -

- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -

It is already a tradition that in the case of a Sigma without an HSM motor we must carp a bit about the autofocus work. However, our complaining will be very limited here. Firstly, the autofocus is slow and noisy – you can hear its deep whirr very well. What’s more important it missed in 13% of shots in the studio conditions. That result is perhaps not the worst but we can call it just average.

As a consolation we can add that on a Canon 20D and on a 300D the focus is set correctly and it locks onto the subject with authority. It is very important, especially for people taking photos in macro mode.

Sigma 105 mm f/2.8 EX DG Macro - Autofocus