Saturn 17th Nov from Tassie

[davidpretorius]

Whilst processing mars from earlier in the night, i was up late eniough (3.30am) to have a crack at mars. Seeing was still very good (8/10), but with saturn so low, it still had some distortions.

1.5x resample ini registax and split up in astra image. The 10 x 4 lr deconvolution produced some nice details on the red frame.

So, i am now in the process of splitting the images at the raw conversion stage and will process each colour separately in registax.

I will let you know how it goes.

[RB (Andrew)]

Davo that 10x4 LR Deco Red looks awesome from what you got in the original.

Well done can't wait for the final.

[davidpretorius]

thanks RB,

bird, have three avis red, green and blue. I am trying to process in registax. Everything seems ok except when i go to do LR deconvolutions and combining.

Astra image is asking for a grey scale image???

Is there any special way i should be doing things??? when i have the colours separated on three separate movies??

the compressed .rar movies are located at http://precons.com/iis/gallery/Nontr...olar%20System/ and they are around 5mb each.

If you can have a look at one of them to see if i have stuffed up, that would be great.

thanks Bird

[asimov (John)]

Aaah! About time you posted some images too!

Well done mate & looking forward to the final image!!

[bird (Anthony Wesley)]

DP, if you saved them as tiff images then they're actually colour images, not monochrome. In Astra Image, go to Process -> convert to Greyscale and all will be ok.

Bird

[bird (Anthony Wesley)]

You've probly worked this out already, but when you get three monochrome images that you're going to combine, use edit->image title to name them something obvious like R,G and B so it's easier to find them when you're doing the RGB combine part.

Bird

[davidpretorius]

you legend bird, that is is!!


thanks again for more info!!!!!!

[davidpretorius]

Ok, nearly there, thanks to bird, i have got the tiff files after stacking each channel and have converted to greyscale and then combined. I have done no deconvolution at this stage.


the four on the left are the result.

[asimov (John)]

Pretty good Dave, but as you say you were shooting thru 'thick atmosphere' at that time of the morning.

I count myself lucky in one respect only being unemployed: I can wait up till 5am & then shoot saturn, & sleep during the day if I so desire!

Good to see you putting in plenty of practice processing wise!

[bird (Anthony Wesley)]

Looking at the channels, the blue suffered the most - that's ok, blue is the hardest to get focussed anyway. You've got some colour balance work to do - when you use the RGB combine in Astra Image, do you adjust the colour weights? I normally leave red at 1.0 as a reference and then adjust the other two until I get a colour that's close to what I want.

The only mind-bending part is that you reduce the amount of a colour by *increasing* it's value, seems backwards to me but that's the way they did it...

For reference the rings should be a sort of blue-white colour and the planet a light yellowish-brown.

Bird

[davidpretorius]

no i have not tried changing the colour, but am now getting to the stage of giving it a go.

also i am redoing blue channel ini registax

[acropolite (Phil)]

Great work Dave, after spending the last 2 hours outside battling with my LPI (first time) and LX, I have a newfound respect for imagers with dobs.

[iceman (Mike)]

Great result Dave!

[davidpretorius]

thanks guys

[TidaLpHasE]

Great shots Dave, your pics are getting better and better, soon you will be in all the astro mags with the best of them