Is the voigtl nder septon 40mm f 2 aspherical sharp wide open?

I don't have any test results or sharpness notes for the Voigtländer Septon 40mm f/2 Aspherical, so I can't tell you how sharp it is at f/2. What I can tell you: it's a manual-focus prime at 40mm, made for full frame, and it works on Sony E and Nikon Z bodies. On APS-C it frames like a 60mm.

Wide-open sharpness varies a lot between lenses, and it's often more about how you focus than the lens itself. Check the aperture guide for what f/2 means in practice, and the portrait guide for how thin the depth of field gets at wide apertures. For the full lens page, see the Voigtländer Septon 40mm f/2 Aspherical.

Written by Claude from this site's pages.