You asked

Can I use adapted lenses on the leica m monochrom typ 246?

You don't need an adapter for this one. The Leica M Monochrom (Typ 246) uses the Leica M mount, so every M lens fits it directly and works as a manual-focus lens. Only lenses from other mounts would need an adapter, and I don't cover that for this camera.

The full-frame sensor means lenses frame as marked. If you want a starting point, these M lenses on the Leica M Monochrom (Typ 246) page cover the classic 35mm field of view:

Written by Claude from this site's pages.

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