On 2/22/07, Moose <olymoose@xxxxxxxxx> wrote:
> I too had this trouble with my first target, a simply piece of 5x7
> glossy photo paper. Get it in the sun and about right with no
> reflections and it would start to curl, creating new reflections. I
> managed, but it was difficult. I later bought an 8x10 target on luster
> surface paper laminated to a stiff piece of plastic. Problem solved.
Dang. I got one like your 5x7 glossy. Didn't realize there was one
on a different surface.
> Even the cross polarizer is bound to not be entirely color
> neutral, so it will throw off your profile. It is then only valid for a
> picture taken through the same polarizer.
Valid? Perhaps not ideal, but I am curious to try it all the same.
I'm betting it will produce a pretty good profile since it has never
produced noticable color shifts when I have used it for copy work.
> Same thing for the T10. A profile made with it is valid for other images
> made with it, but not for daylight. Flashes may be roughly daylight
> balanced, but aren't really the same.
Actually "daylight" is all over the map, colorwise. I might happily
settle for "roughly daylight balanced."
> For accurate color, the profile needs to be made with the same light as
> the image is it used to adjust. Shoot by late day light with a daylight
> profile and you will get the warm effect of that light. Shoot the IT8 in
> that light, make a profile from it and the previously warm images can
> become balanced as though shot in the middle of the day.
Sure, I get that. But I would not be interested in shooting during
magic hour and having it end up looking like it was shot in the middle
of the day.
Thanks for your comments.
Joel W.
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