User ID wrote:
Your Phase-1 digital back is certainly not "3rd rate". So I stand by my disparaging remark, which reflected the OPs budget of approximately zero and the obsolete old backs that still sell for too much $$.
The OPs D850 is a far better and more practical tool than an RB with an ancient clunky digital back.
OK the OP budget is 0 up front but would be extremely costly to shoot Polaroid today that is if he can find the film.