Can I double stack Quark + Lunt LS50THa?

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teldar_paper
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Can I double stack Quark + Lunt LS50THa?

Post by teldar_paper »

I have the Lunt LS50THa with B400, I thought I could solve 3 problems:

1. See more disk detail
2. Have a bigger blocking filter for imaging
3. Let me use more comfortable, longer focal length eyepieces (right now I have to use uncomfortable 4mm Plossls for high mag)

by getting a Quark Chromosphere as a double stack unit.

From what I'm read online, I just have to replace the B400 with a regular diagonal & put the Quark in it... anything wrong this plan?


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Re: Can I double stack Quark + Lunt LS50THa?

Post by _Zakalwe »

It will be extremely dim for a start. I tried once with a Lunt 60 and it didn't work.


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Re: Can I double stack Quark + Lunt LS50THa?

Post by marktownley »

Try it and see what happens


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Re: Can I double stack Quark + Lunt LS50THa?

Post by teldar_paper »

I had to fiddle with a few extension tubes/diagonals to get it to focus, but looking through it at 100x magnification was awesome! I can't imagine that the "native" front-mounted DS etalon could be much better than this. I'll still have to get the feathertouch/moonlite focuser to better handle the added weight of the Quark.


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Re: Can I double stack Quark + Lunt LS50THa?

Post by daslolo »

teldar_paper wrote: Tue Sep 12, 2017 7:48 pm I had to fiddle with a few extension tubes/diagonals to get it to focus, but looking through it at 100x magnification was awesome! I can't imagine that the "native" front-mounted DS etalon could be much better than this. I'll still have to get the feathertouch/moonlite focuser to better handle the added weight of the Quark.
extensionS and diagonalS
does it look like this in the end?
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Re: Can I double stack Quark + Lunt LS50THa?

Post by Astrograph »

You can make it work sometimes and sometimes not. It depends on how lucky you are with the two filters being compatible with each other. I did once combine a Quark and a Quantum to see what it was like. The contrast in the bit of the sun I could see was amazing but it was not a practical solution. Its actually a negative for imaging. You will find a very small field that is well corrected but because the image is so dim, exposure time has to be quite long and ultimately causes blur when you stack frames.


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Re: Can I double stack Quark + Lunt LS50THa?

Post by Valery »

All depends of both etalons transmission % and blocking filter transmission. The brighter the images in your LS50THa and Quark 0 the better.

I got both LS50THa PT and Quark. DS works extremely well.


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