We have some night exterior shots with available light of the street lights.
It is going to be low key in some shots and we ask how can avoid noise in the blacks or even in all over the frame.
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07-04-2009, 07:05 PM
We have some night exterior shots with available light of the street lights.
It is going to be low key in some shots and we ask how can avoid noise in the blacks or even in all over the frame.
07-04-2009, 11:15 PM
Some things that come to mind.
Proximity: How close will subjects be to direct light of the streetlights?
Filtering: You may want to consider filtering if your blue channel is taking a hit. Then again, you may not have much stop to give up.
Tests: Shoot some tests and then see if you can get the desired results with just streetlights. Make sure to take this all the way through to the coloring stage and do test with full debayer to see just how much room you have to play with.
Will you have actors in these shots? If so, I'd advise to have additional lighting to give them some separation. Relying entirely on streetlights could be dicey. Certainly possible if you position them in places where the light hits just right for the scene. Keep an eye on color temperature. Sodium Vapor lamps can cause some strange color rendition. Again, this is why I suggest testing.
07-05-2009, 12:17 AM
Ok, keep in mind that im regurgitating information that I havent actually tested myself.
Went to a demo recently where they suggested an interesting technique for shooting low light situations. It involved shooting at a scarily low ASA such as 250 or 320, then in post using a kind of photoshop technique where you overlay the footage on itself and use a blend mode such as "add" in order to raise the brightness of the clip.
Or use REDlog in Color, and choose colorFX > ADD. Which acts in the same way, but from the source R3D.
This might be an obvious trick, but I thought Id suggest it. Worth testing.
07-05-2009, 12:21 AM
I would suggest having some super speed lenses T1.4 or T1.3!
Consider using the new build 20 beta with the new RedAlert. It has cleaner footage in the blacks...
Also watch for flicker if you get off-speed.
Have a good shoot.
07-09-2009, 09:09 PM
Thanks Steve Andrew and Rich for all of your god advices.
We are going to do tests.
We will have lights for the shots with the actors, just the long shot of the street without actors will be with the available lights.
I will take my Leicas Van Diemen T1.6 or Zeiss H.S. T1.3 for the test.
I will strengthen the blue channel.
We will test it at different ASA such as 250.
The Photoshop technique, the build 20 idea and the Relog in Color are something we will add to the tests.
Anyone has more ideas?
07-09-2009, 09:19 PM
There's a software program that magically reduces noise so you can push Red in night exteriors etc. I can't remember what it's called, but Evin Grant mentioned before.
07-10-2009, 02:57 PM
"Anyone has more ideas? "
A full moon never hurt.
07-11-2009, 06:42 AM
That's a good one.Originally Posted by Joe G.
07-11-2009, 09:41 AM
Consider using a little hand held little light. If you are going to be using a Red and have a crew of more than 5 then you might as well throw in a little light into the mix. Even if only an LED mini. Perhaps you can work in 5600k?
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