Quote: His course requirements for still photography are film only...
Quote: I was thinking a P30... Subtle things like the fact that the Pentax P30 only recognises film with speeds up to 1600, so he can't use the light metre with Ilford 3200 for example, unless he has a portable light metre.
Baring any special film camera requirements by the instructor, any film camera will do. Presumably, the cheaper the better. And the cheapest route is for you or someone else to loan him their film camera.
So who cares if the camera won't meter 3200 speed. If he gets an assignment to shoot at that speed, he can just manually under expose a 1600ASA one stop; otherwise, just shoot with slower film. It sounds like the goal here is to find him a cheap, working camera that won't need a CLA to get him through the class. A cheap Pentax K1000 will go up to 3200ASA. And I'd think that since the class requires a film camera, the goal is to learn the basics of photography where getting automatic features on the camera is less desirable.
Quote: Drawbacks to using old Pentax SLR lenses on the new DSLR system - do they require an adapter for the aperture lever etc?
If you are talking M42 screw mount lens old then, yes, you need a adapter; otherwise, all Pentax lenses will fit a modern Pentax DSLR. However, you'll get to utilize more automatic features with manual 'A' lenses the the manual 'M' lenses. And you're assuming he'll go with a Pentax DSLR. I wouldn't factor that in unless he ends up spending lots of money on lenses.
Quote: Quality and selection of digital era lenses compared to the competition (Canon/Nikon). This isn't a big deal but I'd like to hear what ye think on this...
Quote: Pentax build quality, especially for DSLRs is great from what I hear.
This doesn't seem related to finding your friend a cheap, working film camera unless you assume he'll be getting a Pentax digital camera. There is a healthy used market of older Pentax lenses with lots of choices. Plus there are 3rd party K mount lenses to pick from. As far as selection of modern DSLR lenses, a quick visit to Pentax's web site and to Canon/Nikon will make that clear. The build quality on most of the old manual cameras is good too.