i have a old point and shoot i wanna use for its lo-fi effect but i rlly wanna use my rangefinder focuser, a watameter. However it 's calibrated to focus for 50mm lenses and the camera has a 44mm lense. I'm worried this will affect focus , Am I right or will it be totally fine. My camera has no zone focusing so other than guessing, this would be the only way.

Oh sorry for the annoying pic of a leica as the thumbnail , but i need the clickbait for thou's wisdom, if that makes sense.....