[Tig] theatre screen luminance standard
jim at power.net
Wed Nov 1 17:26:19 GMT 2006
Also handy for some standard daylight illuminants... (not just the
On Nov 1, 2006, at 2:10 AM, Hakan Toptas wrote:
> Is there a calculation formula or a chart between kelvin and x,y
> x=.314, y= .351 means 6300K.
> What should be the x,y values for 5400, 5600 or 5800K.
> Thanks and regards,
> Hakan Toptas
> Sinemaj, Istanbul
> ----- Original Message -----
> From: "Jim Houston" <jim at power.net>
> To: "Rob Lingelbach" <rob at colorist.org>; "Telecine Internet Group"
> <tig at tig.colorist.org>
> Sent: Tuesday, October 31, 2006 5:19 PM
> Subject: Re: [Tig] theatre screen luminance standard
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>> For film projection, 16fL open gate at 5400K (more or less- it has a
>> wide tolerance, typical is 5600-5800)
>> For digital projection, 14fL(48 nits) at DCI P3 (x=.314, y= .351)
>> approx 6300K CCT.
>> All of these are measured off the screen.
>> On Oct 31, 2006, at 5:44 AM, Rob Lingelbach wrote:
>>> TIG is supported by subscribers.
>>> see http://tig.colorist.org for donation button interface. The
>>> Wiki isdown temporarily
>>> I'm sure this has been covered before but (tail between legs) I
>>> don't have a search facility
>>> working right now for the archives. Can someone tell me (and
>>> another couple of colorists
>>> who are interested) the standard, SMPTE or other, for screen
>>> luminance in projection theatres?
>>> there could be some caveats in this kind of general question with
>>> which I'm somewhat aware,
>>> but if a standard exists, please let me know, thanks in advance.
>>> Rob Lingelbach
>>> Pixion, Mumbai, India http://www.colorist.org/robhome.html
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