#photography nerditry:
Currently making trips up to the roof with my camera and a theodolite, measuring the horizontal and vertical angles of view of my lenses. (Also being reminded about the effects of wind chill).
Why? Because this information will help with reasonably accurate estimation of the sizes of objects in architectural-type photos.
Fun fact: the Rodenstock 50mm on the Phase One back has a horizontal angle of view of almost exactly 1 radian (1000 mrad), which is convenient.
Why is this convenient? It means that with this lens, if you want to make a photo of a building, you completely fill the frame (after shifting) with the facade by being exactly as far away from the building as it is tall. Wider lenses allow you to be closer, longer lenses require you to be farther back.
Of course, you rarely want to compose exactly this way, but it’s a useful benchmark.
Anyway, 9th grade math class finally proved its worth.
@[email protected] Hah, I don’t remember when I learned it, but I use SOH CAH TOA almost every day ;-)
