Is the voigtl nder ultron 27mm f 2 sharp wide open?

I don't have sharpness test results for the Voigtländer Ultron 27mm f/2, so I can't tell you how it performs wide open. What the page does cover is the lens's basics: it's a manual-focus pancake for Fujifilm X cameras, and on APS-C it frames like a 40mm on full frame. At f/2 it gives about the depth of field of f/3 on that sensor.

If wide-open sharpness matters to you, check the Voigtländer Ultron 27mm f/2 page for the full specs and the list of compatible cameras. For a refresher on what the aperture number does to focus and background blur, see Aperture.

Written by Claude from this site's pages.