Over the years Pentax manufactured some excellent lenses. A good example's the 135mm Super Takumar f3.5. Taking advantage of these requires a body. There's a tendency to match Pentax to Pentax and go for a K1000. But wait! There are several M 42 mount bodies available at considerably lower cost. A good example's the Chinon. These are robust work horses and will open the door to some great glass. And yes, I follow my own advice.