Mark,
I didn't want to imply that the cameras mentioned by the OP are a bad choice or cannot be used for that.
But you say it yourself: "... they (tech cameras) offer options (tilt/shift) not readily available in a DSLR format Medium format system and ultra fine detail
resolution at the wide end that is a step above current MF options ..."
All is said here, for me, especially when shooting landscapes and nature. I am not saying this with my Alpa hat, but as a photographer who has worked for 20 years with tech and LF cameras with movements. For me landscape/nature photography is first synonym of fun when shooting, thinking about the image and building it up slowly with my eyes first, and then with the camera and its almost unlimited possibilities. And, still for me, this means to use a camera with which I am not limited by any means on the technical side, being able to move my sharpness plane precisely, by tilting, by swinging, to shift when necessary a few mm either to get something in or may be out of the frame from a given viewpoint, or to shift for a panoramic view when the subject allows it, to use the finest lenses with the highest possible resolution and image circles allowing these movements, and to have a camera that is built to get the most out of the current sensors without any compromise concerning precision.
I don't need (and I don't want) AF or all the settings such DSLR MF cameras are offering to the users, and I don't need nor want to shoot at the speed that such cameras almost force me to (or may be I should rather say that the tech camera forces me to slow down).
Color cast issues can be dealt with very quickly and efficiently, when using the right software. It simply needs an additional shaded shot with each image taken. To deal with this later on the software level is almost no deal, for me and IMO. And one does not have to deal with it with all lenses, most of them are not showing color casts.
I don't see any shooting option limitations with a system like the Alpa. Alpa is building cameras and accessories which are very versatile and part of an integrated and complete system, interchangeable and usable on all Alpa 12 cameras, this since now more than 15 years.
But this is only my opinion, that's the way I understand landscape and nature photography and want it to be for me, having time with my camera and remember later this time I had to create my image, step by step.
Best regards
Thierry
I'm sorry, but to imply that only a Tech camera is the 'right' choice for landscape work is a bit of a red herring.
Without question, they offer options (tilt/shift) not readily available in a DSLR format Medium format system and ultra fine detail
resolution at the wide end that is a step above current MF options but the vast majority of landscape photographers working in
the medium format medium are not using Tech cameras.
Unfortunately, the gains come bundled with their own raft of compromises- from costs that will easily rival the S2, significant color cast issues that
need to be dealt with, and system versatility limitations with regard to shooting options.
Also, probably won't be a very satisfying experience using a 40Mp microlense'd sensor.
Don't get me wrong, a Tech camera is in my near future but only as a supplement to a DSLR-styled system.
If you are a generalist, I think your most interesting options would be to compare the H4D-40 and the Phase P40+
That said, a previous generation, lightly used 'full frame' Phase back like a P45+ or P65+ would provide excellent quality
on one of their cameras as well as offering you the possibility to add a Tech camera down the road if the need arises
Mark
www.marktomalty.com