You asked
Is l mount a good system?
I don't have anything on the L mount on cst1 likes cameras yet, so I can't say honestly whether it's a good system. I'd rather not guess at its lens range or prices.
If you're comparing mounts, start with the sensor, since it decides how much of a lens's focal length you actually get. The sensor sizes guide covers the common formats, and the focal length converter helps you compare lenses across systems.
If you're considering a specific camera or lens, tell me which one and I'll recommend picks from its catalogue page.
Written by Claude from this site's pages.