My Littman arrived a few days ago and I've begun to play with it. It is a very cool camera.
For those of you who aren't familiar with it, it is built by the rather controversial William Littman, who has converted a Polaroid 110, I believe from the 60s. His camera is a pretty expensive version of this conversion due to the fact that his rangefinder focusing is rather exact, whereas others doing the conversions aren't. It is a 4x5 handheld rangefinder camera.
Anyway, it is a very well made camera and I've only shot about 18 shots with it as yet. For me, a portrait photographer is makes sense because it works much the same as medium format, in that you focus through the rangefinder, and shoot. You don't need to mess with focusing, placing the film in, etc. With a grafmatic back you can fire off 6 shots in relative short order.
The part that I'm still trying to get used to is the rangefinder. Having recently just purchased a Mamiya 7II, with this being my first rangefinder, after having use SLR (Nikon, HAsselblad) for years, I find that with the Littman, I am having to get used to the little triangle in the rangefinder that you actually focus from.
Unfortunately a couple of years ago, I had to get progressive lenses in my glasses. This I'm told is due to advancing age, whatever the hell that means. Or I could be due to too much masturbation as a kid. We'll never know.
Anyway, progressive lenses are lineless trifocals and you have to place the correct part of the lens of your glasses on the viewfinder to get the correct focus. So essentially you have to focus your glasses as well as the camera at the same time. I'm working through it.
If anyone has any questions about this camera please feel free to ask me.
His site is also the following:http://www.littman45single.com/