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astro mick

Dual rig ccd cameras

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astro mick    1,703

Hi guys.

Am setting up a dual rig comprising of dual ED 80 F7.5 scopes.

One for mono and one for RGB.

Already have an Atik 314L+ possibly for mono.

To keep costs down looking at the Atik 420E for the RGB.

I know they are different sized chips,and the 420E is more suited to fast scopes.

Yout thoughts again please.

Mick.

 

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Uranium235    6,283

If you can, get another 314 (2nd hand). Its a rig I used to have and it generated a lot of data, pretty quickly.

However, one point to note is that unless you have an adjustable saddle for the 2nd scope - youre going to be using guidescope rings... which I always thought the 80ED was a little bit heavy for. Great when it works, but if the alignment goes off a bit - its a case of fiddling about in the dark to fix it.

With two mono cameras you can still capture the Lum and colour at the same time, just run it this way... for every 3x600 of Lum, you will have 1x600 in R,G and B - which would be good enough ratio of Lum and RGB for a decent LRGB image. However that would also involve an EFW (more expense... sorry!...lol).

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Tim    3,040

Hi Mick,

I've no experience of the 420E, but I do have a mono and OSC camera with the same chip in, and sometimes use the data together, which works quite well, although I don't capture the data simultaneously. (Can't afford two 6" 'fracs! :p )

At any rate, even if your RGB data is a different size or resolution, you can make it fit together nicely with a program called Registar, which can work on images with even a vastly different scale. As long as you are adjusting the RGB data to suit the Luminance set you shouldn't have too many issues.

It's an interesting project, keep us updated with how you get on :)

 

Tim

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carastro    2,733

Have you already got the 2nd scope?

If not you may or may not be interested in my set up.  

I don't have matching scopes or cameras but if I put my smallest camera in my widest field scope, and vcie versa the FOV comes up almost matching.  This gives me lots of versatily, as I can put the largest FOV camera in the widest FOV scope for large targets and vice versa for small objects.

Dual rig is: 

ED80 and Atik460

WOZS71 and Atik314L

These are pretty similar FOV done together.

HTH

Carole 

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sloz1664    630

My dual rig incorporates an OSC ccd camera on one scope and a HaOiiiSiiLRGB mono setup on my second scope. I gather RGB on one scope and usually Lum or Ha on the other scope. It gives me full flexibility on broadband or narrowband imaging. I calibrate and combine my images, which have different fov using APP.

Steve

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astro mick    1,703
12 hours ago, carastro said:

Have you already got the 2nd scope?

If not you may or may not be interested in my set up.  

I don't have matching scopes or cameras but if I put my smallest camera in my widest field scope, and vcie versa the FOV comes up almost matching.  This gives me lots of versatily, as I can put the largest FOV camera in the widest FOV scope for large targets and vice versa for small objects.

Dual rig is: 

ED80 and Atik460

WOZS71 and Atik314L

These are pretty similar FOV done together.

HTH

Carole 

Hi Carol.

Yes i have two of those discontinued Celestron ED 80 F7.5.

These are great scopes with R/P focusser, image never shifts no matter what the weight.I believe also they use FPL-53 glass.(crude but efective)

Mick.

Mounting piggy back.

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astro mick    1,703

Thanks to eveyone else who commented.

Mick.

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tomato    451

Good luck with the dual rig, please keep us posted on how you get on. I am planning a collaborative project using a Moravian G2-8300 mono on an Esprit 150 and a 314 OSC on an Altair 102 mm APO. This is not a considered choice, it’s just what cameras and scopes we have at this time. General consensus is that the mismatch in aperture will not allow the data to be combined successfully, but there’s no harm in trying.

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astro mick    1,703
Posted (edited)
5 minutes ago, tomato said:

Good luck with the dual rig, please keep us posted on how you get on. I am planning a collaborative project using a Moravian G2-8300 mono on an Esprit 150 and a 314 OSC on an Altair 102 mm APO. This is not a considered choice, it’s just what cameras and scopes we have at this time. General consensus is that the mismatch in aperture will not allow the data to be combined successfully, but there’s no harm in trying.

If you use the software registar you will.Its a great piece of software that does all for you.

Mick.

Edited by astro mick

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tomato    451

Thanks Mick. You are quite correct, I’m sure both Registar or APP will size and align the images, apparently the problem could be that the larger aperture instrument goes a lot deeper, and stacking subs with such differing star counts makes for very poor images.

Anyway, we’ll give it a go.

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