DJE, Boz's site lists lots of Pentax zooms, but my recollection is the M40-80 was the first in the M lens line. Later some bigger, heavier, constant aperture zooms came out...ending with the A28-135/4. I recognize that some pre-M zooms like the 135-600mm existed.
As for the screwmount stuff, I'm reading from old US promotional literature listing available SMC lenses for your ESII. Regards, Bob S. Quote from my original followed by DJE comment: > > Pentax was selling > >a full lens line and eschewing zooms, but getting killed at the camera > >counter by Vivitar and their zoom lenses. The sales point was always > >'inferior zoom' sharpness. Eventually Pentax relented and added Zooms, > >but for a long time only the M zoom was the 40-80mm and that was > >introduced as by Pentax with an 'apology' on quality. > > The KEH catalog that is currently open next to me lists the 24-35, 75-150, > 80-200, 35-70, and 28-50 M zooms as well. I'm not sure > there were any K zooms that were not simply updated screw-mounts.
