My Girlfriends Father last night pulled out an Older Nikon FG film camera. Along with it are a 50mm f1.4 AI type lens and a Rokinon 75-240mm f4-5.6 Manual focus (push pull type) zoom, plus a teleconverter and an external flash of some sort. I can't tell if the camera is in working order or not, as I've never fiddled with a film SLR. I looked through the viewfinder and it was dark which was a concern. He hasn't used this camera in years and I don't know how to tell if it is in good working order or not. I saw one listed on BH photo's used list (graded a 9)for about $200. Adorama had them on the used list for about $120 and a little lower for the one's they listed. The 50mm appears to be pristine, and have seen it listed from $90 to $150 depending on the place where you purchase. The Rokinon probably would fetch $20 at most. I don't have any data on the flash. My questions are these... How can I tell if this is a decent camera in good working order? What are some things I need to know? (I would go out and buy a roll of film if that is what it will take). ALSO....Do you think those values I have listed above are reasonable or should he expect less for anything if he were to sell it. (I'm seriously considering buying the 50mm from him for my own use as I can use it on my D50.) Thanks.