At the risk of chiming in where the non technologically oriented (like myself) should (like the angels) fear to tread, I will risk referring to an issue which seems to me to keep highlighting itself. While the narrowness of the medium format digital market is frequently referred to as being an ironclad reason why manufacturers like Sony will not consider producing a lower priced digital back, is it not possible that there is a self-fulfilling prophecy coming into play herein. It would seem that the main reason why this market remains so narrow is very likely to be because of it's extremely high entry expense. I suspect that there are quite a number of others (besides myself) who are aware of the superiority of a tech camera system over 24/36 with high end T/S lenses, for doing architectural or landscape, (a fast growing amateur segment). I could more easily justify (rationalize?) spending for an Arca RM3DI and great Digeron lenses which will fill the bill from now on, but not for a very expensive back (however good) which will relatively soon become outdated and plummet in value. If the hope of we deluded optimists should ever be fulfilled, and an effective but affordable back were to come forward, I would be quick to grab up an RM3DI (and the lenses) before Arca-Swiss became vastly further behind in production because of Sony's foolishly adventuresome antics.
