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Old 11-04-2006, 05:14 PM
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lots of eyes on you!

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Jupiter 10th April from tassie

Hi All,

well seeing was great for this run. 8/10 bordering on 9/10. Imaging at f38 or 1600x or 9.625 m, however you want to measure it. 5fps for 90s, 1/33 exposure, 50% gain, 50% gamma

I believe my best to date. This was taken in raw mode, heavy wavelets ( 1.0,1.0,5.8,25.3, 50.2, 79.8) and a 2x1.1 ME deconvolution to clean it up. This seems to produce the best result.

I have reduced the gamma by 80%, 60%, 40%.

What I need from your kind selves is which apprears best for your monitor ie lcd or crt. I understand that people like more contrast for detail, but I like to have something close to what the eye sees as well

When I get home i will test on my crt as well. I have found that what looks great on a crt seems smudgy on a lcd and burnt out in the middle. I may have to adjust unsharp mask levels etc

A 1.5x mitchell resample is processing as we speak

So please feedback with what you like or dislke and your monitor type.

Thanks guys.
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Old 11-04-2006, 05:48 PM
bird (Anthony Wesley)
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The middle set is probably the best for me, but it's close call between 2 and 3.

Nice images...at least someone is getting some good seeing :-) The last few times I've had a go it's just been a fuzzy blob.

cheers, Bird
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Old 11-04-2006, 05:58 PM
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iceman (Mike)
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Excellent! I prefer the middle or left, and each set I prefer the bottom left (despeckle).

I'm using an LCD, and the middle area does look a little overexposed but almost all jupiters (including my own) look overexposed in the middle on LCD's.

Definitely your best - the image scale is awesome. Resized down a bit they look even better. Nice work, glad you're getting some good seeing to take advantage of that extension tube.

Last edited by iceman; 11-04-2006 at 06:40 PM.
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Old 11-04-2006, 05:59 PM
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astro_south (Andrew)
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Nice shots David

I like the Gamma-6 and Gamma-8 shots more than the Gamma-4 shot. I have a trinitron CRT screen
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Old 11-04-2006, 06:24 PM
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asimov (John)
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Gawd! Your best by a country mile!

Like mine nice & contrasty....the whole 5 in the left jpeg.

Congrats mate...their ALL stunning!

CRT
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Old 11-04-2006, 09:32 PM
beren
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awesome , well done
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Old 11-04-2006, 09:46 PM
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lots of eyes on you!

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rotated and final presentation.

Thanks for feedback
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Old 11-04-2006, 11:00 PM
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asimov (John)
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Thats awesome Dave.
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Old 12-04-2006, 01:39 AM
Dennis
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Hi Dave

You are achieving some extraordinary results Dave, these are simply superb images and I can only imagine the sweat and effort you have put into acquiring, processing and presenting these – congratulations and well done.

Dave, they are all wonderful in their own right, but if I had to pick one that is most pleasing to my eye, it’s the middle set, top left hand corner.

BenQ 20” LCD screen.

Cheers

Dennis
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Old 12-04-2006, 11:30 AM
bird (Anthony Wesley)
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Talking to Damian Peach the other day, he mentioned something that's obvious in hindsight but I hadn't thought of before - islands are normally places of good seeing because the thermal profile is dominated by the surrounding water. Tassie is an island, albeit a bit on the large side, but I'd guess that's why you're getting some good seeing.

On the other hand, I'm getting nothing but fuzzy blobs up here at the moment, tried again last night but no good. Seeing would have been 1/10 at best. It was just possible to see the equatorial belts.

Bird
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Old 12-04-2006, 12:38 PM
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lots of eyes on you!

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you beauty bird, so when are we all moving to a lovely tropical island for imaging say for 6 months of the year????
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Old 12-04-2006, 12:42 PM
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ving (David)
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I have to find a tropical island where the commute isnt too bad

great shot dave
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  #13  
Old 12-04-2006, 02:15 PM
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aiming for 2nd Halley's

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I'm running out of superlatives... beautiful! I need some seeing and I didn't bother last night when it was good... aaaggghhhh.

Well done Davo
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Old 12-04-2006, 02:26 PM
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[1ponders] (Paul)
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Holy snapping duck ...feathers...batman. Damn Dave I nearly fell of my chair when I opened that first collection up. Awesome man, truely awesome. I do hope you and bird and Mike are getting together to write the ultimate imaging and processing tutorial. Stuff the imaging just do the processing tutorial, so I have somewhere to start.



Ahhh....bird your grasshopper has come a long way in a very short period of time
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Old 12-04-2006, 02:35 PM
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davidpretorius
lots of eyes on you!

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thanks Paul,

I start to do a processing tutorial and then mike or bird or damien tries something new and it changes. I must say, it is a very exciting time trying to keep up with techniques. To have amateur astronomers basically involved with the hubble space telescope (bird) chasing the junior red spot is fantastic. And the fall out of Mikes animated gif from 3 odd weeks ago is still rippling around the world.

I must say I am close to a final process for jupiter, and hope to find some time to do a online tutorial. As soon as it is written, no doubt, Mike will find that the new way is to image and process in the nude or something and I will have to redo the screen shots!

At the end of this month, Damien gets back from barbados with images of jupiter from a c14. And then the chase is on again!
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