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Old 03-06-2008, 10:43 AM
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Screwdriverone (Chris)
I have detailed files....

Screwdriverone is offline
 
Join Date: Feb 2008
Location: Kellyville Ridge, NSW Australia
Posts: 3,306
Hi Doug,

Thanks, I figured out how to correctly align the channels in Registax after I recomposed them in Gimp. I have also just used the same settings for the wavelets as Mike's "mild" Jupiter settings and it didnt turn out too bad, certainly one of my best efforts on Jupiter so far. I think the central donut ring is part of the unsharp mask settings, I will have a play with that further on subsequent images and see if I can perfect that.

As for the logitech cam, I did a quick mod (unscrewed it and popped out the lens) and then superglued it to a redundant lens cap for the focuser and plugged it into the scope through the office window and tried to see if i could focus on a street light 1km away. You were right, I shouldnt have bothered! the amount of noise and "sparkles" present in the background was ridiculous. The CMOS sensor is next to useless in anything below supernova brightness from 1AU away. Oh well, at least I have tried it and ruled it out.

I am scouting around for a cheap webacm that is easy to mod, as you said, the SPC900c and the Toucam look like the go, I might also try a few garage sales and markets to see what turns up on the cheap.

In the meantime, I will (when the rain stops) endeavour to capture some streamed video to the PC directly from the camera when Jupiter is closer to zenith and also try some 150x mag with macro focus on the camera. From memory this last shot was taken using infinity focus and fine tuning with the electric focuser and I have read that macro focus gives better autofocusing results.

What I have noticed is the much better quality of image through the original Skywatcher plossl's when using the barlow, simply because I think they have less lens elements than the 10mm WA and the 15mm super plossl so there is less light degradation after the barlow. With the exception of the 12.5mm ED eyepiece I am going to try the 20mm with the 2.5x APO barlow (125x) and then use the 3x optical zoom in macro mode and see what I can get from that.

As Jeanette said, sooner or later I am going to be a gun at wringing the very best out of what I have, then when I get a webcam........look out....!! ha ha ha

Cheers for now, and sorry for the essay, once again.

Chris
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