Vray Physical Camera - Portrait Mode...

[Dave_Wortley]

This is a problem we have over and over again, where we're working on a scene layout for a print job, trying to match a photographers setup, we've got the camera information, person puts in the information and it doesn't match, why because the photographer shot in portrait mode, so we have to do a calculation to work out what the focal length/FOV is for a Portrait camera when everthing in max is based off a landscape orientated Camera. Would be nice to have a button to specify the camera is in portrait orientation so we wouldn't have to calculate this every time.

It's so easy to forget about when you're doing quick tests....

[stef.thomas]

Surely that's just a matter of setting the aspect ratio correctly in your render output? Lenses are round, the orientation of the film/sensor behind it shouldn't affect your camera settings. I.e. a 24mm lens is a 24mm lens regardless of whether you shoot portrait or landscape.

[ghiom3d]

This is a problem we have over and over again, where we're working on a scene layout for a print job, trying to match a photographers setup, we've got the camera information, person puts in the information and it doesn't match, why because the photographer shot in portrait mode, so we have to do a calculation to work out what the focal length/FOV is for a Portrait camera when everthing in max is based off a landscape orientated Camera. Would be nice to have a button to specify the camera is in portrait orientation so we wouldn't have to calculate this every time.

It's so easy to forget about when you're doing quick tests....

I think that someone with some Maxscript knowledge can do this. Not ?

[Dave_Wortley]

I can easily make a maxscript for it, but it something that should really be in the standard interface for a camera, it's such a pain to keep educating everyone to why it's different.

Surely that's just a matter of setting the aspect ratio correctly in your render output? Lenses are round, the orientation of the film/sensor behind it shouldn't affect your camera settings. I.e. a 24mm lens is a 24mm lens regardless of whether you shoot portrait or landscape.

Lenses are round but Film backs are not square. If you setup a landscape 35mm camera with a 50mm and then simply change the aspect ratio for the render to portrait you actually end up with what would be like shooting with a portrait orientated 35mm camera with something like a 30mm lens. This is what people need to realise is wrong! If you change the aspect ratio to be portait then it should be a 66mm lens (roughly, depending on camera back).

[stef.thomas]

Ok, yeah just had a look and I see what you're saying.

[crazy homeless guy]

Maybe I don't understand how portrait mode works, but would rotating the camera 90 degrees help?

[Dave_Wortley]

Maybe I don't understand how portrait mode works, but would rotating the camera 90 degrees help?

Yes that does work but then you have to deal with looking at the viewport rotated 90degrees which is a bit awkward to work with.