@Nilla - > I know very little about Medium or large format Brenda, AFIK, large format is always sheet film (8x10); while medium format can be either sheet film (4x5) or roll (such as 120, 220, or 70mm) depending on the camera. Shooting with a camera that uses 120 or 220 roll film is very similar to shooting with a 35mm camera. For this test, I'm intending to shoot 120 roll film in these 4 Kodak emulsions: 160NC, 400NC, 160VC, and 400VC. However, (goof that I am) I accidentally got the 160NC in 220 instead of 120 and couldn't replace it on Sunday. The comparison shots will be delayed for 2-3 days. Sorry. OTOH, at least I got the area somewhat cleaned up today. MGD