A 35/3.5 was part of the Spotmatic kit I bought (used) in 1970. I always found it a sharp, contrasty lens with typical for that time period excellent Pentax build quality. Probably my favorite wide angle, though admittedly I'm not much of a wide angle lens man (as opposed to a wide angle man that the scale keeps reminding me of)
BUTCH "Each man had only one genuine vocation - to find the way to himself" Hermann Hesse (Demian)

