This one-touch zoom was made for just 9 months during 1976. It was sold with a reversible screw-on metal hood made especially for this lens.
I've noted just three since 1999: $350 obo, posted Feb. 2, 2001, on http://camerex.com/discuss/messages/3/249.html?FridayFebruary220010... $364 EX KEH 6/99 $399 EX+ KEH 6/99 Unless you're a collector, it's not worth it. For a little more, you could find a nice one-touch Tokina 80-200/2.8 manual-focus zoom. (The redesigned, AF version is two-touch.) For a lot less, you can find an excellent one-touch 70-210/3.5 manual-focus zoom from Tamron or Vivitar Series One that focus much closer than 11 feet. If you'd rather stay with Pentax, the 70-210/4 PKA is the bargain telezoom of choice and close enough to f/3.5. [EMAIL PROTECTED]
