You asked
Leica q3 43 vs leica q3 monochrom?
The Leica Q3 43 and the Leica Q3 Monochrom share a 60-megapixel full-frame sensor and built-in stabilisation. The difference is the lens and the output.
The Q3 43 has a 43mm f/2 lens, announced in 2024. It suits tighter, more selective framing, and its f/2 gives the depth of field you'd expect from f/2 at 43mm. Read the full specs on the Leica Q3 43 page.
The Q3 Monochrom has a 28mm f/1.7 lens and shoots black and white only. It came out in 2025 and is the pick if you want a wider view and you're happy to work in mono. See the Leica Q3 Monochrom page.
If you want a wider lens but don't need black and white, the Leica Q3 page is the closest alternative.
Written by Claude from this site's pages.