The vertical 135 half frame, the purely-guessed manual zone focusing, manual winding and rewinding, automatic electric-eye metering, a slow fixed wide-angle lens, the very limited speed of shutter.. Now I believe that Pen stands for Pentax in 2024. ;-p And recently, I have been able to find two excellent condition Pens (of different models) each of which only costs me about 1/4th the cost of a brand-new Pentax 17, should I still need to go for the 17? :-D The Oly Pens could select the aperture which is impossible for the Pentax. In the mean time, it's time for me to pick my Canon 17 to shoot again shortly. Thank you, Pentax (Ricoh)! At the end of the day, the Canon 17 is a much more precise rangefinder anyway.