Branching from this thread
initiated by Alex168 I thought a little about "painting with light
", or to put it differently: painting with your camera.
I was inspired by these photos from Viggo Mortensen of LotR-fame here
. Viggo shot on film and just exposed so long that the figures became blurred and ephemeral/immaterial - quite impressive!
When I thought about it, I came to the conclusion, that you need exposure times of around 2-4 seconds. Well, that came as a shock as the next Q arises: How do you get these exposure times under normal sunny conditions? Well, let's do some quick math:
- Put ISO to 100
- Mount a lens that can go to F/22 (no fear of diffraction here)
- Get out on a sunny day and what do you get? Around 1/30 sec
So you still have to get 7EV
down to 4sec exposure time!
How to do this?
I know of no filter shaving off more than 2EV and staying true to normal daylight-spectrum.
Only thing that comes to my mind is using two polarizers and adjust them near 90° to each-other. that should block almost all light. What I don't know is, how this construction influences color-temp?
Anybody out there knowing how to block off 6-7 stops of light while staying true-color?
Thomas (beware: Nikon-fanboy and moderator!) My Lens Reviews
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