Thanks for the help folks. Keep the thoughts coming if anyone has any more. These film scanners are what we used at my newspaper from probably '99-'03. Kodak RFS 2035 Plus Film Scanner is the official name. When we went full-on digital with cameras, we put most of them to bed and kept one hooked up for archive scanning. Pretty sure they were like $14 grand new. Yeah, not nearly worth that now, but it is hard to just throw 'em in the landfill if there's a way to make 'em useful to someone. They do work really well by the way. Pretty fast and excellent color rendition. Sharp, too. I'm gonna start researching the info you all gave me and if I get luck (or not), I'll get back with you.
What SCSI interface do the scanners have?
I have a couple of SCSI cards used by a print shop, on I assume SCSI scanners, came with a few Quicksilvers I bought when they went under, I could let go of one of them reasonable, I'm pretty sure they have native OS X support, so they should work in a G5 with PCI/X slots, just not the G5 (2005) with PCI Express slots, tho they may work in a PCI-E to PCI adapter in one of those Mac's.
I have an AVA-2906 that is not bootable, has no firmware, has driver for OS X 10.1, and should work with the builtin drivers in 10.2.x-10.5.x, also working in PC's. It has a 25 PIN external SCSI interface and a 50 PIN internal SCSI interface.
I also have a AHA-2930CU Mac, is bootable, works with OS 8.6, OS 9.x and OX 10.1-10.5.x, looks like it has 68pin external SCSI interface and 50 PIN internal SCSI interface.
I don't have any cables or SCSI devices to test them, but they seem to work in my QS.