"True" astrophotos [was: Great astromart post...]

RAnder3127@No-Spam
Mon, 24 Jan 1999 19:56:04 EST

In a message dated 1/24/00 6:13:53 PM Eastern Standard Time,
psterngold@No-Spam writes:

<< What about negative stacking? Dodging and/or burning in? Are none of these
acceptable? If not, then you'll never see a photo of a galaxy or bright
nebula with the detail maintained in the core as well as the wispy arms.

Dodging or holding back exposure to show detail isn't like fabricating colour
where
there is none. I like the unsharp mask shots of the Orion nebula because
they show
the trapezium and the image is closer to what the human eye sees than the
photos with
the burned out core and tracery arms.

I find that my constellation photos show *less* color in the bright stars
than does my naked eye. This is one reason why Fujii and others use
diffusion. The bright stars tend to "burn in" the film to blank white, and
their color is lost. Diffusion simply spreads their light enough so that
you get a hint of color surrounding the white core. IMO, a very pleasing,
very natural effect.
>>

Not unless you have a few waves of spherical aberration! Seriously, I know
how
the colour is burned out of stars by astrophotos. In the same way, a large
telescope
burns the colours out of stars like Albireo. A smaller scope always shows a
more
saturated colouring of the pair.
-Rich


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