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#1 Rob Wilton

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Posted 15 February 2007 - 03:04 AM

Dear all,

to get the effect of an 81EF filter using Tungsten stock,
what filter would you use for daylight stock?

thanks a lot!

Rob Wilton
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#2 Nick Mulder

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Posted 15 February 2007 - 03:59 AM

Dear all,

to get the effect of an 81EF filter using Tungsten stock,
what filter would you use for daylight stock?

thanks a lot!

Rob Wilton


Are you referring to the fact that the 81EF might over-correct the tungsten balanced film to end up too warm ? If yes. I dunno some sort of light warming filter ? If no, then just use daylight stock ... (?)
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#3 Rob Wilton

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Posted 15 February 2007 - 04:40 AM

Are you referring to the fact that the 81EF might over-correct the tungsten balanced film to end up too warm ? If yes. I dunno some sort of light warming filter ? If no, then just use daylight stock ... (?)


Dear Nick,
Im shooting 16mm Tungsten (ending on digibeta) for an entire shoot and have some scenes outside. I wanted a blueish look to the outdoor scenes and liked the way the 81EF looked on Tungsten film.

What I REALLY want to do is shoot the greyscale skewed and correct to the blueish 81EF look in the digital transfer, to gain as much speed as possible during the shoot. How would you go about doing this?

thanks again!

Rob Wilton
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#4 David Mullen ASC

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Posted 15 February 2007 - 10:40 AM

You would use the 82B or 82C blue filter, but there are also other blue filters like the Decamired series.

I usually rent the 82B or 82C for shooting greyscales, so that the following scene without the filter ends up timed warm, as if I had put an 81EF on the camera. The 82C is the heavier one and probably closer to what you're talking about. It's not an exact match in terms of MIRED shift, but by eye, it looks about the same (daylight stock plus 82C versus tungsten plus 81EF outdoors.)

82 Series Color Conversion Chart

82 increases color temperature 100 degrees Kelvin

82A increases color temperature 200 degrees Kelvin

82B increases color temperature 300 degrees Kelvin

82C increases color temperature 400 degrees Kelvin
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#5 Rob Wilton

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Posted 15 February 2007 - 01:52 PM

Nick and David,
thanks for your help!
Was wandering , because Im doing a transfer digitally, will the correcting of colours of my skewed greyscale affect the quality of the final picture....
in contrast to if I just put the 81EF in and not mess around with digital grading?

Rob
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#6 David Mullen ASC

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Posted 15 February 2007 - 05:23 PM

I don't think correcting an image halfway between 3200K and 5500K, whether to make it look half-blue or half-orange, is asking too much of a digital color-correction software, but certainly if you filter for exactly the color you want, you will probably have the cleanest transfer. However, I don't think in this case it matters one way or the other -- it's not like you're trying to create a full orange or full blue look in post.
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#7 Chris Keth

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Posted 15 February 2007 - 07:10 PM

If you don't have the filters, you could always shoot the greycard with a sheet of 1/4 or 1/2 CTO in front of IT.
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