Test Quark chromosphere

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JF Roudier
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Test Quark chromosphere

Post by JF Roudier »

Hello, I made various tests with Quark chromosphere. The results are here: http: //www.astrosurf.com/jiaifer/pageessaisquark.htm
Thank you, good heavens
Jef


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Re: Test Quark chromosphere

Post by marktownley »

Nice review, thanks! :)


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Re: Test Quark chromosphere

Post by swisswalter »

Hi Jef

thank you very much for the review


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Re: Test Quark chromosphere

Post by Montana »

Excellent :hamster: :hamster:

Alexandra


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Bill Edelen
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Re: Test Quark chromosphere

Post by Bill Edelen »

Thanks Jef,
l lost a bit in translation but enjoyed the comparison.


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GuillermoBarrancos
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Re: Test Quark chromosphere

Post by GuillermoBarrancos »

One correction tho. You say you need an expensive ERF above 80mm, which I assume you mean front mounted. This is not correct.

I only use a 2inch Baader UV/IR rejection filter in front of my diagonal with my 120mm SW Esprit APO refractor.

It's when you go beyond 120mm, that you need to start using a front mounted ERF.


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JF Roudier
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Re: Test Quark chromosphere

Post by JF Roudier »

Hello, thank you for your comments.
I do not master the English language is an automatic translation ...
I know that up to 80 mm this is not a difficulty not to use a
ERF filter. 120mm but I have a doubt. If you use the Quark to 120mm with just an IR cut is that it works!
I will report on my page, but with the usual caveats ...
Best Regards,

Jef


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Re: Test Quark chromosphere

Post by GuillermoBarrancos »

JF Roudier wrote:Hello, thank you for your comments.
I do not master the English language is an automatic translation ...
I know that up to 80 mm this is not a difficulty not to use a
ERF filter. 120mm but I have a doubt. If you use the Quark to 120mm with just an IR cut is that it works!
I will report on my page, but with the usual caveats ...
Best Regards,

Jef
Hi,

Yes. From 80mm till 120mm you can use a UV/IR rejection filter in front of the diagonal.

For larger aperture refractor you will need a front mounted ERF filter.

It's stated also in the manual.


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