Man , did you make a score! Hopefully it'll give you many years of fun. They are fun to use. The mirror lockup control would be on the right side of the mirror box (as you hold the camera). It's black, and rectangular in shape. If your camera doesn't have it, it's from the '69-'75 series, and if it does, it's from the '76-'84(?) series. Judging from the lens (SMC), I think mine was made between '71 and '75, and it seems to work just fine. You might want to get the eyecup ($6.99 Cdn from Pentax Cda), especially if you don't want to scratch your glasses.
Since the viewfinder's not the brightest, you might find f2.8 lenses more pleasant to use than f4 lenses. Happy shooting! Pat White - This message is from the Pentax-Discuss Mail List. To unsubscribe, go to http://www.pdml.net and follow the directions. Don't forget to visit the Pentax Users' Gallery at http://pug.komkon.org .
