Of course the perception is demonstrably incorrect, but true in the context of Leica M (or similar) compared to the large pro-level SLRs with their motors, battery grips, and zooms... while I'm equally comfortable with a Pentax MX and a Leica M2, I find the Pentax K7D confusing and complicated compared to a Leica M8.
It's interesting that some have responded in a very literal way, challenging the accuracy of my question's premise. While it is obviously true that not all RF's are smaller than all SLR's, the contention that RF's are preferable because, among other reasons, they are small and light, is a constant meme here.
One manifestation of the small and light meme is the issue of whether or not a camera can be stashed in a coat pocket (presumably an HCB-style sport coat
🙂). This is another size-related standard used to judge a camera's merit.
That and the other size-related criteria suggest that they are often the primary factors in a decision to buy an RF. After all, the M5 was and is criticized as too big, and we can wonder if Nikon released an RF as big as an F3 and a DSLR as small as a Bessa, which would attract the most buyers among the RF faithful.
So, those literalist responses are part of what I was trying to tease out: What are the real reasons people buy RF's? And, a different question, once you have used your first RF, what's the reason you buy your second RF?
Why do I ask those two questions? I wonder how many people initially jump into RF photography because they are influenced by the small and light meme, with no real regard for or understanding of the unique elements of an RF, like the actual rangefinder or the direct vision that Roger cited. Perhaps, then, later decisions to stay with RF's, to buy a second RF, are often prompted by other factors, including, per Doug, the distaste for complicated interfaces that control features the user does not wish to use. Is size a secondary factor in those decisions?
I've argued in another thread that designs like the m4/3 and its cousins, along with cameras like the Ricoh GRX, will eventually lead to a new camera design that will have a strong appeal in both the RF and DSLR camps. The biggest part of that appeal will be size and weight, buttressed by improved image quality, fast autofocus, small lenses, and an EVF that rivals optical viewers. We'll see what really happens.