First and foremost, should have a lens interested in this photographer in mind, whether this extreme wide angle ever needed.
Knipsen lot of thought with a picture angle of about 100 degrees delivers guaranteed boring, bland photos.
This advance now to the optical quality of these optics:
My first test object was the Tamron 11-18 mm, which is an acceptable sharpness and is also a satisfying contrast range has to offer, but the distortion of straight lines, also in view of the large angle of view, absolutely unacceptable.
The Sigma 10-20 mm makes straight in this respect almost unbelievable.
Also photos of geometric objects offer even at the lowest focal length in terms of quality sharpness, contrast and level of distortion that even the twice as expensive Nikon 12-24 mm must dress warm …
Also the mechanics provides no reason to blame, the processing, the materials used and the mechanical functions are flawless.
All in all, get the customer interested here is a very good lens to a more than fair price.
translated from amazon.de customer review.
