Pentax Q-S1 was my first digital camera and the 8.5mm prime is about 40mm equivalent on a full frame. I think this is the reason why I got so used to this field of view.
On a full frame manual focus camera, 40mm is probably the longest focal length that I am comfortable with using zone focusing.
>>3100876I would probably qualify 40~45 range of focal length lenses (ff equiv.) as being in the same category. Prime lenses in this range usually share the same characteristics, very small without suffering major drawbacks for being tiny.