Rework of DMK 3x from Broken Hill

[Quark]

Hi All,
Followed up Icemans suggestion and reworked my earlier posted 3x image of Jupiter.

Put the three channels back through RegiStax, this time stacked 400 of the 1000 frames for each channel. Used slightly heavier use of the wavelet processing.

In Astra Image Pro used slightly heavier use of the maximum entropy deconvolution filter on each channel before and after combining them.

Slightly dropped the curve within the curves adjustment in Astra Image Pro.
what a powerful tool this is, made a big difference, thanks for the tip Mike.

The final result looks good to me.
Astra Image Pro really is an excellent package and includes many similar tools to Photoshop.

May have slightly over processed but I think I am on the right track.

Regards
Trevor

[iceman]

Hey Trev
The original is on the left and the new on the right?

AstraImage sure is a great tool.

[Quark]

Yes Mike, it makes for a great comparison.
I probably should have indicated why I included the two images.

I must say, that I thought the original image was not that bad, a little soft, just goes to show what you can do with software.

There lies the value of forums such as this, where there are amateurs experienced in various fields that are willing to share their knowledge.

Regards
Trev

[Lester]

Good improvement there Trevor.

[AlexN]

Not too shabby at all Trevor, Great improvement..

[iceman]

Hi Trev.

The second one does look much better in terms of contrast and highlighting the detail.

I pretty much use the 5x ALL the time now. Sometimes the conditions just aren't good enough for it, but so be it. It might just mean I go back inside and try again another night. The 5x gives me a focal length of about 10m.

What's the focal length of your 16"?

Do you have any active or passive cooling for the primary mirror?

I think you should definitely persist with the 3x - but having said that, if your aim is to get a pleasing image and the conditions aren't that great, then dropping back to a 2x will give you that opportunity.

[Quark]

Hi Mike,
The focal length of my scope is 1829mm and I have an active cooling system on my primary (see attached image). I usually turn it on about an hour before I am planing to image.

This has been my first experience imaging at 3x, as you have mentioned in a previous post the effective spacing provided by the filter wheel probably provided extra magnification.

I see great possibilities in persevering with the 3x but the quality of the seeing will be a major consideration. I have read through your articles on processing and found them most helpful. Most of the post processing that you suggest can be done in AstraImage Pro. I am still coming to grips with this software and have experimented with most of the functions within it.

The seeing out here in Broken Hill is generally very good so I think I just need to persist and hopefully improve my technique.

I put a lot of effort into the collimation of my scope, with the scope set up in the position it will be in when I am imaging. I have the complete Tectron collimating kit and swear by the Cheshire and a very nice double pass laser. I regularly test the laser in my lathe. I set it up in a three jaw self centering chuck and have the laser aligned on a target 15 ft away through the headstock of the lathe.

Nothing is perfect in this world but the alignment of my laser is always bloody close.

Regards
Trev

[Matty P]

Great improvement over the original image Trevor.

Looking forward to more. :thumbsup: