Quote:
Originally Posted by steve000
Thats a fantastic image man. I also have a 400mm f5.6 I look foward to giving it a shot next new moon.
I had a thought the other day, taking a couple of shots in monochrome mode with a colour filter inbetween then merging the images. obviously tough with a lens, but on a 400mm scope quite easy.. whats your opinion on this. an attempt to get better colour reproduction
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Cheers Steve - the 400mm f5.6L is a great lens for astro due to the minimal number (7) of lens elements it uses to get a nice flat, colour-corrected field.
Monochrome mode on the DSLR isn't the same as true monochrome I'm afraid as the camera just produces a B+W version of the RGB image. The bayer matrix filter used to produce an RGB image is still in place on the sensor unlike a mono ccd camera...
http://www.cloudynights.com/ubbthrea...8/Main/4598730
Doug
