Honeywell ESII User Manual page 31

The following two lenses will not properly fit
the Pentax ES II camera body due to different
mechanical design and construction:
Super-Takumar 50mm f/1 .4
Super-Takumar 55mm f/1.8 (with "1.8"
engraved at the left end of the diaphragm
ring and " 1 6 " at the right.)
29
The length of a tripod's screw should not
exceed the normal length of 4.5mm (3/16").
Do not extend it longer than this length when
mounting your camera on a tripod. Forcing
longer screws into the tripod receptacle of the
camera will damage the mechanism.
SPECIAL CAUTION:
Takumar lenses and Pentax accessories are engineered and meti-
culously produced for Pentax use. Use of other brands may cause
difficulties with the Pentax, for which we cannot assume any
liability.