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I switched from S5 to SL2S for handling/ergonomics/aesthetics etc as well as the EVF rather than Leica ‘colours’
I picked the Leica but there isn’t any significant difference and I wouldn’t make a decision on output basis tbh
The SL2S is absolutely fabulous to use, for me head and shoulders above the S5
But the aspects that matter to me won’t for others I could easily understand if they thought I was mad