Quote:
Originally Posted by Martin Pugh
I have to ask a question though. On your Cent A deep-field page, you link to a full-size image here:
http://www.pbase.com/strongmanmike20...73250/original
When posting this image, did you resize this in any way? I ask, because the actual galaxy is somewhat smaller than the comparision you posted. Was your comparison post just a crop or upscaled to match my image for comparison purposes?
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Yes that link is to the raw image size just converted to a jpeg, if you right click on the image you will note under properties that the pixel dimensions are almost that of the KAI11002, "almost" only becasue I did crop the non registered edges off the final combine (125 exposures over 3 nights with meridian crosses remember).
Yes I carefully coregistered my shot to match yours, so Astroart did the matching
. I think the comparison is good too, good because it shows just how fine the details are you have captured and good because it shows that, as far as fine resolution goes, a high quality medium FL 6" APO on a nice mount (but no PEC) can hang with a research quality 12.5" long focal length RC using adaptive optics on a fully tricked PME....without being (too) embarrased
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My point was that the nearly 1500mm FL of the 16" F3.6 is more than adequate to produce high resolution images of galaxies with a 9 micron pixel chip and if it is a big chip (11002 or 16803) then the focal length is still low enough to fit plenty of other things in too when needed. I would give my eye teeth for a (well made
) 16" F3.6 Astrograph - perhaps the perfect still amateur sized imaging scope in my opinion..?
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Mike