I've taking several shots at difference scenes, angles and lighting conditions to compare the Sony FE 12-24/2.8 GM, Sigma 14-24/2.8 and Voigtlander 12mm f/5.6 III for flare resistance. The latter is famous for its beautiful color rendering and flare resistance and it indeed did very well on this test.
All three lenses have excellent veiling flare resistance as you can see from the crops below. They are also very resistant to ghosting flare. The Sony's larger bulbous front element didn't induce ghosting flare even when provoked! To my eyes it performs just as good as the Voigtlander which was my benchmark lens for flare resistance, with the Sigma showing slightly less resistant to ghosting compared to the others.
Thanks very much Fred. Flare resistance on the GM looks excellent, which is a key result for me becasue it means less need to switch over to my Loxia to shoot against the sun. Coma is excellent too, but I would not have expected otherwise because astro is such an obvious use for this lens. The only minor negative in terms of IQ so far seems to be wide open corner performance at the long end, which doesn't improve with corner focus. Your 24mm shoot-out will be interesting in that regard.
Aug 20, 2020 at 05:16 PM
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