This is a roughly 40 megapixel PSMS (RGB no Bayer) slide copy made on A7RIII with 50mm SMC Takumar macro on Pentax bellows with copier attachment, at f/11 - this is not necessarily the sharpest aperture but needed to ensure focus on a slide which may not be perfectly flat. The film grain is clearly resolved centrally. The original image (and all others I study) seems very soft by today's standards.