Sony EV1MK Electronic viewfinder with XGA OLED TruFinder 1.3 cm display for DSC-RX1 (Accessories)
Best EVF I had in hand. If EVF and no optical viewfinder, then that is a good alternative. In some areas even an asset: - Final Composition including depth of field, exposure, etc. visible.. - Show all the information, in part, or may not, including