Before you buy it, I always suggest you rent or borrow one and make sure it works for you.

I was going to choose a Canon based on specs and reviews. I rented one and hated it. All the functions were on the back and I found it quite hard to get in the flow, spending all my time “chimping” the menus.

I borrowed a friends Nikon, and found all the buttons I wanted were where my fingers were, and I just naturally found it gelled. I found I spent more time taking the pictures I wanted, and less time messing around.

My partner on the other hand hates my Nikon, and has a Canon that she loves…

FF and vintage looking I only know of Nikon Z. If you can afford maybe Leica M-Series. Fuji has vintage looking cameras too but their lineup is APS-C.

If your looking for a lightweight system I wouldn’t go FF. The bodies aren’t too heavy but the lenses are a lot heavier.

Apart from Leica M, I’d say Nikon Zf if it has to be FF and vintage + don’t fancy paying huge sums for your first FF camera.

Sony a7C series are rangefinder style but are not vintage by any means.

Alternatively, Canon R8/R6: in my eyes they could be seen as vintage, because Canon body design is unchanged since decades :D

Only you can answer this. Here’s how:

Create a spreadsheet with a row for each parameter for comparison, size, weight, price, warranty, resolution, lens fitting, etc.

For each camera you’re considering, add a column to your spreadsheet with the answers to your parameters. Add parameters as required.

To find the best camera for you, compare the first two columns and only the first two. Compare parameters and pick the best option between those two cameras. Hide the column of the least desirable camera.

Then compare the winner against the next column.

Rinse and repeat until there’s one left.

That’s the camera for you.

Leica meets all your criteria. You can attach a Noctilux 50/1,2 lens. Maybe one of the best lenses ever created in the history of the universe