[mst]

No doubt the best build quality of the trio, but probably the weakest optically:



http://www.opticallimits.com/nikon_ff/761-sigmaex2018fx



-- Markus

[exuvia]

you'd want to fix the model name in the final evaluation... it's still "24" <img src='http://forum.photozone.de/public/style_emoticons/<#EMO_DIR#>/biggrin.gif' class='bbc_emoticon' alt='' />

[Rover]

Thanks Markus! You've confirmed what the (precious few) other reviews of this lens are suggesting:

http://the-digital-picture.com/Reviews/Sigma-20mm-F-1.8-EX-DG-Lens-Review.aspx

http://slrlensreview.com/web/reviews/sigma/sigma-wide-angle/150-sigma-20mm-f18-ex-dg-asph-rf-lens-review

[mst]

[quote name='exuvia' timestamp='1341922310' post='19393']

you'd want to fix the model name in the final evaluation... it's still "24" <img src='http://forum.photozone.de/public/style_emoticons/<#EMO_DIR#>/biggrin.gif' class='bbc_emoticon' alt='' />

[/quote]



Oops, sorry. Fixed, thanks for the hint.



-- Markus

[froeschle]

It would be interesting, how the trio (20/1.8, 24/1.8, 28/1.8) performs on APS-C. For the 20/1.8 there is a test on Canon, which could indicate a better performance ( http://www.opticallimits.com/canon-eos/297-sigma-af-20mm-f18-ex-test-report--review?start=1 ). As an alternative to additional tests on APS-C, one could include MTF measurements at the corresponding APS-C borders in other full frame reviews in the future. Unfortunately, there are still systems with neither fast prime wide angles nor full frame cameras like Pentax.

[mst]

Most of the lenses reviewed on the D3x will also be tested on the D7000. This includes the 3 Sigma primes.



-- Markus