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Is the voigtl nder macro apo lanthar 65mm f 2 aspherical good for portraits?

Yes, it can be a good portrait lens. The page describes it as a 1:2 macro that doubles as a sharp short portrait lens. On full frame (Sony E or Nikon Z) it frames as 65mm, a little wider than the 85mm I usually suggest for portraits, so you'll stand closer to your subject. On APS-C it frames like about 98mm, which sits well in portrait territory.

It's manual focus only and not stabilised, so you'll be focusing yourself and keeping your shutter speed up. f/2 is a useful aperture for portraits.

Light matters more than the lens, though. Portraits explains why window light or open shade will do more for your pictures than any glass. For a broader look at portrait focal lengths, see Lenses.

Written by Claude from this site's pages.

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