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Old 29-01-2010, 07:09 AM
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Bassnut (Fred)
Narrowfield rules!

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Join Date: Nov 2006
Location: Torquay
Posts: 5,065
Funny you should say that Alex, I was thinking of a mosaic to get the loops in. Although a small FOV is a bit different, I just end up just missing other attractive object features with a lot more effort and exposure time at a lower percieved quality (viewed full frame). Then of course the question arises of a bigger cam to get the same result without mosaicing. The 6303 at 9u pixels even with a .67 reducer is 1.23 arc/sec pixel image scale, a bit undersampled perhaps, but acceptable. At f9 its 0.83 arc/secs which is fine. A 6303 QE is lower, is expensive and would require a new filterwheel/filters and all that palava though.

I had some comments like "what the hells that" too, its not immediately obvious at this croped FOV of a large object what the object is, so it looses some asthetics by not being familiar to a viewer. Planetary nebs would more suitable.

Im beginning to think very NB, NF in urban skies is a bit hard and limited for average results damb it.
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