Good optics 1

I give the rating of 4/5 because of the focus ring does not lock in automatic which can damage the autofocus mechanism. I tried very very good pictures with this view.
If this ring could hang here was just perfect, shame ...

Liked:

opening
brightness
the visor

I did not like:

The focus ring that does not lock Auto Focus
And therefore its excessive presence: it falls well under the fingers which increases the risk of turning this ring unintentionally.

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After almost four months of sustained use, I do more than 15 000 photos a year, I'm VERY satisfied with my purchase!

I progressed as I never would have believed in so little time!
I use a range of early APS-C out there 2 years, and it's just perfect.
Especially when I see the head of the confident person that I have the latest in photo, which alone can make such clichés in their ...

And I no longer touch to focus ring, probably a matter of habit ...