Setting up for a 4x5 shot is very simple. Comparing scanning vs stitching in computer??
Taking an image with a 4x5 camera involves:
- Unfolding the camera, more or less fast depending on type,
- [option] set the lens if it is not set yet,
- [option] set filter holder on the lens if needed,
- [option] mount lens shade,
- set the cloth,
- screw in the release cable,
- remove the GG cover,
- apply movements if needed
- adjust focus by using a loupe in one or several parts of the GG,
- measure the scene with a light meter (in itself this takes a bit of time - need to check ISO setting,...),
- add center filter to lens if you shoot wide,
- compute modification of exposure taking into account the bellow extension, center filter, other filters,...
- set apeture and diafragm (typically need to move around the camera to do it),
- close shutter
- cork the shutter
- insert the film holder
- wait for wind to slow down to reduce below induced vibrations,
- take 3 bracketed exposures to be sure to have one right
So there is nothing simple about this process... it is, as you rightfully put it, "slow".
I am also using a Maxwell goundglass on my Ebony 45SU.
As far as scanning goes, there is also nothing simple if you want a good quality. Epson doesn't make sense with 4x5, you waste half of the detail and 1/3 of the DR. And this is coming from someone who owns both a 750 and an Imacon Flextight.
Regarding stitching, I don't understand your comment. There are hundreds of photographers on LL alone who routinely use stitching to produce many successful images. If you are able to identify a candidate image for your 4x5 camera of MFDB, then you can apply any technique to capture it. Stitching is just that, a capture technique.
You may be referring to the difficulty of framing without a physical frame? Many photographers can deal with that.