So I’m trying to understand how I could easily use real-life settings for Vray camera.
ISO - 100-200 for daylight, 400 for overcast, 800-1600 inside, and 3200 in the night.
Shutter speed - like in still camera perhaps…
Film gate - 35 mm, 135 mm. I’m not sure if it affects the depth of field? What other types of common film could be used? Though in Vray it says horizontal length in milimeters, whereas here you get diagonals http://www.filmcentre.co.uk/image.html Anyway I guess the majority uses 35 mm.
Then realistic focal length for realistic field of view I think is important to get correct results (correct field of view) , so using real-world lenses focal length makes sense.
I’m not sure if realistic F-number is important, as it’s barely perceivable if it’s correct or not (if there’s such a thing?). Though I might be wrong.
Then using exposure I’m not sure, as from one side it adds some more work to set, and your lights should have different crazy numbers. I mostly didn’t use it, though I’m thinking about getting used to this for easier exposure control. I know in archviz they use real-life light units.
Exposure forces you to use the triangle of exposure. So I guess first you set your desired DOF if you need it, then you compensate it with shutter speed and ISO, which should be realistic for conditions. Or, you first set your motion blur if you need it, and compensate it with ISO and F-number (though in Vray you can turn off DOF effect, which is nice though not realistic… oh well, the times of time-free DOF and MB are yet to come). Though it should be easy, as in 3d your hands are not shaking.