Pentax K1000 used to be the standard "film camera" used to learn photography with. It was inexpensive, had all the manual controls and the pentax glass was sharp as a tack. My first camera was a Pentax K1000 and I bought it from Sears about 15 years ago
Most professionals don't shoot the K1000 because it is just not going to hold up to industrial usage. But if you are going to shoot it as a hobby - you should be just fine. You can buy used lenses for it cheap on Ebay......
