Quote:
Originally Posted by dannat
some great detail there but looks a little blue on my screen, maybe try & bring out the reds.. or does the lens suffer from blue hues?
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My LCD screen gives a much bluer hue to photos than the old CRT did. Also the displays are often distorted by the screen gamma not being the compliment of the source gamma.
It is interesting to hear how people view the colours in astronomical photography. I believe we over emphasise the red emission in our astronomical photos. But that is just my opinion. Are they in fact as red as we have come to accept.
A camera such as the 1000D that many people use, uses a sensor that is more sensitive in the red area than the blue area I have been told and to compensate for this they use a filtering technique to even the response out. So in fact the final response may be closer to the real thing than we usually accept.
Our astro images can be enhanced for clarity and resolution by adding the narrow band response from filters tuned to the actual emission spectra of the object. Particularly in th HA region but is this in fact how they really look. Our eye response is what we ultimately can see which is refered to as the visible spectrum. Some of the photos we see have psuedo colours generated from non visible portions of the spectrum.
Of course these emissions are very important in analysing the source of the light but our eye does not actually see them.
Barry
