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Upgrade the memory of your 2018 Mac mini up to 64GB

Sony 16-35mm f/2.8 GM: Single Frame Performance at f/9 vs Focus Stacking at f/9 (Flowers Amid Bristlecones)

See my Sony mirrorless wish list.

Focus stacking using Zerene Stacker. See my tutorial/how-to in Making Sharp Images.

This comparison confirms Bristlecone Log Low View, this time comparing a single frame to a stacked image made with two frames at f/10.

Sony 16-35/2.8 GM: Imaging Performance @ 17mm, Single Frame vs Stacked: Flowers Amid Bristlecones

Includes images up to full resolution, with crops.

At 11,700' elevation, plants grow low to the ground and the flowers might be missed by the casual visitor. It is springtime in August at this elevation—delayed at least a month by the deep snows. I’ve seen many fewer ground animals (marmots and pika), so some might have perished.

f10 @ 1/25 sec focus stack 2 frames, ISO 100; 2017-08-08 19:28:39
Sony A7R II + Sony FE 16-35mm f/2.8 GM @ 17mm

[low-res image for bot]

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Sigma 12-24mm f/4 DG HSM Art Lens for Nikon F
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