Canon Speed Finder FN  type_Remote Release and the versatile L lens

and the versatile L lens mount

The Nikon 12-24mm f4G ED AF-S DX Nikkor is a good quality ultrawide lens for NIkon DX-format digital SLR cameras

this is a non-illuminated viewer that takes one slide at a time

This Canon RF 35mm f1

not full frame)

Canon Speed Finder FN &nbsptype_Remote Release and the versatile L lensAn impressive monument of a viewfinder, the Speed Finder FN is designed to fit the Canon New F 1 (not the F 1 or F 1N) and provide an adjustable high eyepoint viewfinder image. The Speed Finder FN will let you see a full frame image with your eye up to 60mm (a little over 2 inches) away, and the eyepiece rotates 180 degrees for vertical shooting. In excellent condition, with original case.