Lunk CaK first mod

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allhoest
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Lunk CaK first mod

Post by allhoest »

After the internal inspection of the Lunt CaK, I went for a mod.
The filters for this test are as follow:
- Lacerta 2" Herschell with Brewster angle
- An Astronomic blue 2c, to cut any non necessary wavelength, including the IR (at up up to 1000nm)
- A Baader KLine
- The last filter of the Lunt CaK

The scope is a 100mm refractor + a x2 big barlow.
Only stacking and wavelets are provided. The same amount of wavelets for both presented pics.

Here, with the CaK mod setup:
Image




Here, with the gemuine CaK filter:
Image






:seesaw
I wonder the non uniformity of the CaK mod setup.
I find this mod setup providing less contrasted view.


CS
Alex
2018-Apr-06
Televue NP101
Powermate x2
Lunt CaK 1800
ASI174


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marktownley
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Re: Lunk CaK first mod

Post by marktownley »

Interesting results!


Image
http://brierleyhillsolar.blogspot.co.uk/
Solar images, a collection of all the most up to date live solar data on the web, imaging & processing tutorials - please take a look!
allhoest
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Re: Lunk CaK first mod

Post by allhoest »

Mark, you have experience in modded CaK, I think.
Do you have any hint regarding the non uniformity?

CS
Alex


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marktownley
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Re: Lunk CaK first mod

Post by marktownley »

Looks to me like there is some vignetting going on


Image
http://brierleyhillsolar.blogspot.co.uk/
Solar images, a collection of all the most up to date live solar data on the web, imaging & processing tutorials - please take a look!
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