You asked

Is the voigtl nder heliar hyper wide 10mm f 5 6 aspherical good for landscape?

Yes, I think it's a good pick for landscapes, with a few caveats. At 10mm on full frame it's one of the widest rectilinear lenses you can buy, so it takes in a lot of sky, foreground and scenery. That's the kind of wide framing the landscape page is built around, and f/5.6 keeps a lot in focus without much fuss.

It's a manual lens, though. There's no autofocus and no stabilisation, so a tripod and careful manual focusing will serve you well. It works on full-frame bodies in the Sony E or Leica M mounts, such as the Sony a7R V or the Leica M11. Its framing also goes well beyond the 14-24mm ultra-wide range in the lenses guide, so expect a very distinctive look.

Written by Claude from this site's pages.

From these pages