Peterff wrote:
That is certainly a consideration, although I'd be quite happy with an APS-C sensor initially, at least. Full frame is relatively more expensive, and for mirrorless somewhat limited in choice. Bear in mind that nice though older glass is, it does have limitations that a modern FF sensor might expose.
Actually the smaller sensor requires sharper lens and these old lenses may not be sharp enough. For the same number of pixels the smaller sensor needs sharper lens.