Recently i purchased a Canon EOS M50 Mirrorless Camera Kit w/EF-M15-45mm Len. i'm a beginner in photography. kindly advise me to find a proper filter for my lens. how can calculate or find the filter size for each different lens and what is the "must have" filter rings for my Canon EOS M50.
See that number at the bottom (top if you're standing on your head)? That's the filter size you need.
I'm a sucker for protection filters with hardened glass, but this lens is probably too cheap to justify the cost. Plus, they don't change the image (if best).
I think a C-polarizer filter will give you the most fun, in sunny daylight conditions.