You asked
Best budget lens for the leica m e typ 240?
For a budget pick on the Leica M-E (Typ 240), I'd start with the third-party lenses in the catalogue. My favourite is the TTArtisan 50mm f/1.4 ASPH. A 50mm is the classic rangefinder lens, and this one gives you a fast aperture without a Leica price tag.
If you want something wider, the 7Artisans M 35mm f/2.8 is a small, sensible general-purpose lens. For a rangefinder, that's a good place to start.
The M-E has no in-body stabilisation, so a lens with a fast aperture will help you handle slow shutter speeds in dim light. I'd rather spend on a good lens than a fancy body, as the first camera guide explains.
Written by Claude from this site's pages.