Both film and print suffer from dark fading but it may be small enough to
ignore.
C.H.Ling
----- Original Message -----
From: "Chuck Norcutt" <chucknorcutt@xxxxxxxxxxxxxxxx>
> Good questions. I don't know the answers but I do keep my IT8 target in
> the box it came in so I don't think it's going to fade.
>
> Chuck Norcutt
>
>
> On 10/18/2010 11:29 PM, C.H.Ling wrote:
>> Question, how long does the IT8 target last (fading)? What is the
>> accuracy
>> of the non individually measured IT8 target?
>>
>> C.H.Ling
>>
>> ----- Original Message -----
>> From: "Moose"<olymoose@xxxxxxxxx>
>> My main point in this particular regard is simply that an IT8 target and
>> ICC
>> profiling is a cheaper, more accurate, more
>> standardized solution.
>>
>> If the mixed lighting is fairly even across the subject, ICC profiling
>> and
>> correction should do a good job, as it makes
>> no color temp assumptions, simply maps color points. If lighting is
>> significantly uneven, the classic solution is to be
>> a real pro and create your own lighting. Many years ago, I was a subject
>> in
>> such a situation of mixed light, and the
>> photog. simply fixed it with his own.
>>
>> I suppose you could photograph an IT8 target in the brightest area of
>> each
>> kind of lighting, create separately corrected
>> layers and do some mask painting ...
>>
>> Moose
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