OT: shooting in front of windows

richard-courtney wrote on 5/21/2009, 6:38 AM
Anyone try the Roscoview polarizing film?

In past we would set up a scrim behind the talent to block part of the light
coming in from the window.

If light changed you replaced the scrim or lived with it. This you simply
rotate your matte polarizer. Granted this would be used for a reoccuring
site as you don't want to cut film for single use.

www.rosco.com/images/prodvideos/ChrisSeager.mov

Comments

Grazie wrote on 5/21/2009, 7:12 AM
This was an idea had when I I was remembering playing in my Dad's ophthalmic rooms as a kid. I used to twist 2 Polaroid Sunglasses against each other and a getting progressive lower light levels. What they have done here is to place a pola layer ONTO a window and then twist the matte box! Same thing - yeah?

Nice idea - I still want my contra rotating infinitely variable ND filter lump!

Grazie
Grazie wrote on 5/21/2009, 7:16 AM
Just had another look at it . . quite wonderful!

Grazie
rmack350 wrote on 5/21/2009, 7:33 AM
Was he really saying that you only lose a stop with this? That's not terrible, especially if you've already got the budget to choose between 6KW and 12KW HMIs... ;-)

I've been lighting a series of interviews using a pair of 4-tube Divas for key and N9 on the windows (Yes, I do cut it for one interview). I'd have to double the Wattage of all my lights if I lost a stop at the lens, but the advantage of being able to dial the windows in as the light changed would be worth having our producer pay more for lights. Well...worth it in my view anyway.

A roll of ND is about $100-$120. How much is this material?

Rob Mack
farss wrote on 5/21/2009, 7:42 AM
Had a hands on with this system at NAB, great idea for solving a problem of limited scope. Thing is the more I think about it the more narrow the limited scope becomes. There's one morning TV show down here that has a large window onto a public space that's part of the set, there's a place that might use it except you'd want all the polas on all the cameras to track as the light varied.

Bob.
farss wrote on 5/21/2009, 7:45 AM
"I still want my contra rotating infinitely variable ND filter lump!"

Ya know you can buy them?

Arri make one, no doubt at some astronomic price but someone else has recently started to sell one at a more realistic price. I'll see if I can find a linky to it if you're interested. Saw it mentioned in a forum at DVInfo for the Canon 5D.

Bob.
rs170a wrote on 5/21/2009, 7:49 AM
Rob, I hope you're sitting down :-)
A place called Stage Lighting Store has it for $829.69 for a 56" x 8' roll.

BTW, here's the Rosco VIEW FAQs.

Mike
rmack350 wrote on 5/21/2009, 8:06 AM
Oops. Just priced it on the web. A 56"x9' roll is about $700.00 bucks vs a 20' roll of N9 at $125.00-ish. You'd have to make a case for using this because there are limited times when it makes financial sense.

Rob Mack
rmack350 wrote on 5/21/2009, 8:08 AM
Yeah. Saw that. I think I could make a case for using it but it'd be so rare for me that I'd forget the stuff existed.

Rob
rmack350 wrote on 5/21/2009, 8:23 AM
It seems like the multicamera shoot would be a hard sell. These might be good uses:

- A daily or weekly video message with a window in the background and a lighting setup that stays in place all the time. Traffic reporter, financial advisor, etc. One camera, same shot all year.

- A feature film that will use the same set for a week or more and use it for several hours of the day. This system would save the trouble of changing the gel during the day. It also helps you to keep the same stop on the lens throughout the day. Polarizing gel and filter is probably a problem with dolly moves.

For the situation in the promo video, he was talking about dropping from 12k to 6k HMIs, and probably saving an hour or more every day, as well as freeing up a grip or two for other work. There's a savings to all that, although a weekly rental on a light is often just a 2-day charge.

I'd think this'd be tough to meter if you were shooting film.
richard-courtney wrote on 5/21/2009, 8:26 AM
We have put garden shade fabric outside store windows on makeshift wood stands
to get better light control. Takes more time setting up/tearing down but is cheaper
than ND gels on the windows.

There are some benefits that have merit. Thanks for your input guys.