You asked
Voigtl nder nokton 60mm f 0 95 vs voigtl nder nokton 42 5mm f 0 95?
Both are manual-focus f/0.9 primes for Micro Four Thirds. Neither is stabilised, and both fit the same long list of Olympus and Panasonic bodies. On Micro Four Thirds, each gives about the depth of field of f/1.9.
The difference is framing. The 42.5mm frames like an 85mm on full frame, the classic portrait view, so it's the one I'd pick as a single fast lens for people and everyday shooting. The 60mm frames like 120mm. You stand further back, faces look flatter, and it works well for tight headshots or when you can't get close to your subject. If you're still deciding how much reach you want, the portrait lens guide explains how focal length changes the look.
Written by Claude from this site's pages.