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Sony 12-24mm f/2.8 GM

NEW! Available for pre-order.

3 XA Elements, 2 Super ED elements, nano AR II and fluorine coatings, four focusing motors, dust and moisture sealed.

Sigma 24-70mm f/2.8 DG HSM Art Aperture Series @ 24mm: Alabama Hills Rainstorm Creek (Nikon D850)

See my Sigma SLR lenses wishlist at B&H Photo.

The Sigma 24-70mm f/2.8 DG HSM Art has been out for a while but I had never reviewed it. Well, I’m fixing that on this trip, along with the Sigma 28mm f/1.4 DG HSM Art and the Sigma 70-200mm f/2.8 DG HSM Sports. I’ve already shot a lot of material with all three.

This near-to-far aperture series evaluates lens performance from f2.8 through f/11. It assesses sharpness, point spread function, lens symmetry, field curvature and secondary color correction.

Sigma 24-70mm f/2.8 DG HSM Art Aperture Series @ 24mm: Alabama Hills Rainstorm Creek

Includes images from f/2.8 through f/13 along with a 2-frame focus stack at f/13, at up to full camera resolution.

Overall image rendition is gorgeous (color, contrast), but there are some issues found here at 24mm.

This creekbed is dry nearly every day of the year, but it had rained heavily all night long (an “atmospheric river” storm), a relatively rare event here. There was enough rain to cause road damage, indeed to cut hunks out in places and to turn some sections into creekbeds.

Frame marked f/13.1 is a 2-frame focus stack.

Alabama Hills creekbed after heavy rains all night
f13 @ 1/20 sec focus stack 2 frames, ISO 31; 2019-03-06 10:38:34
NIKON D850 + Sigma 24-70mm f/2.8 DG HSM Art @ 24mm + polarizer Zeiss
ENV: Alabama Hills, altitude 4500 ft / 1372 m, 60°F / 15°C
RAW: LACA corrected
heavy rains all night long

[low-res image for bot]
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