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+--- Thread: Next PZ lens test report: Sigma AF 20mm f/1.8 EX DG RF (/showthread.php?tid=2293)
Next PZ lens test report: Sigma AF 20mm f/1.8 EX DG RF - mst - 07-10-2012
No doubt the best build quality of the trio, but probably the weakest optically:
http://www.opticallimits.com/nikon_ff/761-sigmaex2018fx
-- Markus
Next PZ lens test report: Sigma AF 20mm f/1.8 EX DG RF - exuvia - 07-10-2012
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='
' />
Next PZ lens test report: Sigma AF 20mm f/1.8 EX DG RF - Rover - 07-10-2012
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
Next PZ lens test report: Sigma AF 20mm f/1.8 EX DG RF - mst - 07-10-2012
[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
Next PZ lens test report: Sigma AF 20mm f/1.8 EX DG RF - froeschle - 07-25-2012
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.
Next PZ lens test report: Sigma AF 20mm f/1.8 EX DG RF - mst - 07-25-2012
Most of the lenses reviewed on the D3x will also be tested on the D7000. This includes the 3 Sigma primes.
-- Markus