Well, sometimes a picture worths a million words.. And two pictures worth more than two million words and so on! Action! ;-D
N.B. Picture Sources: Imaging Resource:-
http://www.imaging-resource.com/PRODS/AA77/AA77A.HTM
http://www.imaging-resource.com/PRODS/K20D/K20DA.HTM
Oh well, the ex-Pentax engineers should have been with Sony now, my bet! :-o
Related:-
The Very Different Fates of Two ex-AOC Top Optical Engineers