Hi Ray,
Nice result - M101 is quite tricky as it is large but with a relatively low
surface brightness.
Not sure what the problem was with iMerge, but it's possible that it was
running out of memory and so having to swap pages to disk. How much memory
do you have in your PC? If memory usage is the issue it'd be worth ensuring
you are working in monochrome mode.
Clear Skies,
Jon.
<em class="quotelev1">> -----Original Message-----
<em class="quotelev1">> From: RJS [mailto:yahoo_at_rjs.org]
<em class="quotelev1">> Sent: 09 April 2003 18:36
<em class="quotelev1">> To: qCUIAG_at_yahoogroups.com
<em class="quotelev1">> Subject: [QCUIAG] M101 w/1004x & iMerge
<em class="quotelev1">>
<em class="quotelev1">>
<em class="quotelev1">> Hello all,
<em class="quotelev1">>
<em class="quotelev1">> I had some clear sky, so I tried some galaxies last night to
<em class="quotelev1">> test my new
<em class="quotelev1">> remote drive electronics (25 ft. extension). I initially
<em class="quotelev1">> tried putting the
<em class="quotelev1">> scope on my roof deck, but it seemed like the wires acted
<em class="quotelev1">> like antennas and
<em class="quotelev1">> picked up all the EMF in the neighborhood giving lots of random -and-
<em class="quotelev1">> herringbone noise. So, this was taken from ground level, all
<em class="quotelev1">> else the same,
<em class="quotelev1">> but a fraction of the noise! I could really use some hints on line
<em class="quotelev1">> filtering capacitor values ;-)
<em class="quotelev1">>
<em class="quotelev1">> C114HD prime focus, 1004x cooled to 0C, 75% brightness, 100% contrast.
<em class="quotelev1">> Moon had just set; sea level San Diego location.
<em class="quotelev1">> 8x8 sec
<em class="quotelev1">> 8x16 sec
<em class="quotelev1">> 50x24 sec <polar alignment limited :-( >
<em class="quotelev1">> I tried iMerge for the first time, and was impressed by the
<em class="quotelev1">> function and
<em class="quotelev1">> obvious effort expended, Jon. Oddly, I could use 40+ frames
<em class="quotelev1">> of the 64 in
<em class="quotelev1">> the AVI in one project, but if I selected any of frames 4-15
<em class="quotelev1">> the program
<em class="quotelev1">> crawled and preview stopped. They could be stacked
<em class="quotelev1">> separately... I then
<em class="quotelev1">> merged the 2 results.
<em class="quotelev1">> (Jon, I could get you the file if you'd like... other files
<em class="quotelev1">> worked fine.)
<em class="quotelev1">> Lots of Photoshop levels tweaking, and final 80% unsharp w/6
<em class="quotelev1">> pixel radius.
<em class="quotelev1">> I also gave the 3 layers the following opacities:
<em class="quotelev1">> 8 sec - 14% - top
<em class="quotelev1">> 16 sec - 23% - middle
<em class="quotelev1">> 24 sec - 100% - background
<em class="quotelev1">>
<em class="quotelev1">> I made a 24 sec. flat but didn't use it for this try. Results
<em class="quotelev1">> are still
<em class="quotelev1">> nice and I expect better with flat use later.
<em class="quotelev1">>
<em class="quotelev1">> Ray
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