Is the voigtl nder septon 40mm f 2 aspherical worth it?

The Septon 40mm f/2 is worth it if you want a small, manual-focus prime with a classic full-frame look. On full frame it's a natural 40mm view, a little wider than the 50mm standard, and f/2 gives a pleasant amount of background blur for its size. On APS-C it frames like about 60mm, which suits portraits and street work.

Skip it if you want autofocus or in-body stabilisation, because this lens has neither. It fits Sony E and Nikon Z bodies, including the Sony a7 III and Nikon Z6 II on full frame, and the Sony a6400 on APS-C.

For a sense of how the crop changes the blur, see the focal length converter.

Written by Claude from this site's pages.