This was 62MB as a JPEG, over 1GB as a TIFF, but it turns out that flickr downsizes files this big. I think the sharpness game is now over. Best viewed original or large.
Camera - 1947 Speed Graphic.
Lens - Grandagon N 90mm f6.8
Exposure - 1 minute at f45
Film - 4 x 5 Velvia 100 Quickload, expired 2007, desaturated in post