You asked

Is the voigtl nder super nokton 29mm f 0 8 aspherical sharp wide open?

I don't have sharpness test results for the Voigtländer Super Nokton 29mm f/0.8 Aspherical, so I can't tell you how crisp it is wide open. What I can tell you is what it is. It's a manual-focus prime for Micro Four Thirds, and at f/0.8 it frames like 58mm on full frame, with depth of field about like f/1.6 there.

That thin depth of field is the real challenge. With manual focus, you'll need to nail focus yourself, and the Portraits guide explains how much sharpness can vary at very wide apertures. Check the lens page for the full specs, and if you tell me what you want to shoot, I can suggest a camera to pair it with.

Written by Claude from this site's pages.

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