-
time lapse with auto iris?
I always shut off the auto iris when I’m working, always. But I have a sunset shot to do that will allow no planning or scouting, and I’m wondering if this might be a good time to let the auto iris do its thing.
Has anyone tried to do this? What were the results?
Since the Varicam will give me a few seconds in between frame grabs I could manually adjust the iris (which is what I’d do if shooting film).
What’s the best way to handle this?
Many thanks, and long live the COW!
Thomas Kaufman, DP
Washington, DC -
3 Replies
-
Thomas,
I would definately NOT use an auto iris for a sunset timelapse; to do so would defeat the transition form light to dark. I would slightly underexpose the beginning, before the sun actually comes into the frame in anticipation of its brightness, and then when it disappears, volia, night!
The alternative of manually adjusting the exposure is a reasonable alternative because you would probably do so in a much more subtle manner than auto iris. Perhaps you should consider using the variable shutter as a way to feather the exposure in a more manageable fashion with smaller and more acurate increments than you could accomplish on the lens iris. This is also an old film trick!
Of course your best chance of success would be to do it twice, with the first twilight as a test. I’m not sure if you own your own camera, if so, this would be easy, otherwise pick up your rental the afternoon before your shoot and return it the morning after, this would allow you two chances.
Good luck!
-
Use the EC-3 remote panel which will allow you to roll tape and change iris without touching the camera.
Tony Salgado
-
I only have cinestyle lenses. That being said…I
Reply to this Discussion! Login or Sign Up