Robert Martin , Mar 13, 2005; 07:12 p.m.
The FH-869G film holder works like the FH-869S holder except it has glass to hold the film flat. The FH-869GR film holder allows you to rotate the film by 5 degrees in either direction to straighten the image, but it will only scan one image in the strip at a time. If you want to batch scan medium format, you probably want the FH-869G film holder. A description of these holders is in the optional holder section of the Nikon 9000 User Manual.
I have the FH-869G holder and it is a major improvement over the FH-869S holder that comes with the scanner, but you will have problems with newton rings on some film. Some users are purcahsing a fluid mount carrier for medium format film. This film holder will keep the film flat, no newton rings, but it is more of a problem to mount the film. I constructed my own glassless carrier that supports the film on all four sides of an image, just like the 35mm carrier. I only scan 645 and 6x6, so I constructed a film holder for each size. I use this carrier for most of my medium format scanning - I do a lot of batch scanning of both 35mm and medium format.