[APML] question on HorseHead shot

["Bobby Middleton" <bobm@koyote.com>]

I've posted a shot that's not a keeper because of some trailing and long
stars plus film flatness issues with the TP component. It's the horsehead
region done with the BRC and 6x9 camera. I will re-do the TP part. The color
E200 shot is OK.
http://www.koyote.com/users/bobm/horseheadBRC.htm
This shot is pretty deep and the question I have concerns the nebulosity on
the right side of the image. I don't see this on most shots of this region,
but there are hints of it on one of my images. Is this nebulosity really
here or has it been overly enhanced (even created?) from differential
reciprocity failure of the green and blue layers of the E200 out at the edge
of the frame caused by light fall-off and vignetting? I often get some of
this at the edged of the frames and usually process it out, but it gets down
to judgement on how much red is really there sometimes.
Does anyone know of a deep shot of this region I can check?
Bobby Middleton


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