Posted 01 February 2011 - 08:46 PM
Posted 01 February 2011 - 10:09 PM
Posted 01 February 2011 - 11:50 PM
Well there are flicker regards, generally, but I'd say mostly everyone sticks to 1/48th for 24fps or 1/60th for 30 fps, and when shooting say 48fps you're at 1/96 so on and so forth. Sometimes you'll change shutter speed/angle when you're shooting and want an effect, such as the 90 degree shutter used in the opening of Saving Private Ryan, but a general rule of thumb, keep it standard.
Yes, tradition is to stick to the equivalent of a 180 degree shutter angle for any camera speed, so 1/48th for 24 fps, 1/200th for 100 fps, etc. However, you have some wiggle room within a range where the motion will stay "normal-looking" (traditional) because blur is determined by the amount of motion, and that can vary shot to shot. So often I've switched from 1/48th to 1/32nd for low-light scenes in digitally-shot productions -- as long as there isn't a lot of fast action, most people aren't going to notice the longer shutter speed, and it gives you another 1/2-stop of expsoure.
As for action scenes where you deliberately go for a shorter shutter angle/time to increase strobing, again, there is a whole range from barely noticeable to highly noticeable. I've used a 90-degree shutter angle for many fight scenes and whatnot and it's not too obnoxious, you just a bit of that strobier, crispier motion effect without hitting the audience over the head with it.
Posted 02 February 2011 - 01:12 AM