Hi all, Picked up a pair of Canon FA's that just arrived today. Was wondering if anyone has a manual or more information regarding these cameras, there is scant info online. All I know that they are specialized cameras for taking pictures of the human eye. This pair previously belonged to the National Institute of Health, in Bethesda Maryland. They don't have any iso or shutter speed settings, comes with a special motordrive, and a attached (non removable) prism. Supposedly based on the F1 body. The viewfinder has a extended variable dipoter of +2 to -4. Lens mount is also odd, perhaps tailored for an industry standard machine or optic? Also they have a focusing screen that is unmatted (clear) with cross hairs. It seems to fire at 1/30th of a second. One seems to work fine, the 2nd I think has a failed electromagnet that fails to release when shutter is depressed, you have to nudge the release under the baseplate to get it to release the magnetic hold and then it fires. Anyone have any experience? Modifiable for any other purpose other than its intended build? A free lensing 1/30th sec camera? Or just something to sit in a collection of oddities?