I just about exactly now make my first steps in 4x5 photography.
I bought a second hand Crown Graphic, and plan to use it as a handheld addition, while on the street (at the moment, I am shooting Leica M and adding the odd shot with a Hasselblad + 80mm).
So far, I have not enough training, but figuring out, shooting the 4x5 rangefinder and framing with the sportsfinder (I find the Graflex optical finder utter crap, to be honest) seems straight forward.
It is comparable enough to shooting with a Leica super wide angle and external finder.
There is one issue though - the Kalart side mounted RF on my Graphic gives a pretty small view of the scene, making composition quite hard (I prefer the workflow of framing - estimating parallax correction for the rangefinder - focussing and shooting with the rangefinder window for fast lenses).
How does the RF from the Linhof Master Technika compare to the early Kalart RF of the Crown Graphic?
Are there any specifc sheet film holders, I should prefer buying, to later be compatible with a Linhof as well (I really like that idea of using different cammed lenses)?