I purchased this lens primarily for landscape and architectural shooting but with use I have found it amazing versatile in a number of photographic settings but it forces you to truly engage your subject matter when shooting to the point of almost "invading" personal space to fill the frame - lots of challenge however with DOF issues, correct focus in low light etc especially with fast moving subject matter
Old school 2 1/4 x 3 1/4 inch or 120 roll-stock film camera - this and a 4x5 view camera were my first serious cameras when I was younger - but it taught me the basics of handling sheet film in total darkness - a skill that today is akin to being able to engineer a steam locomotive!!