Test Quark chromosphere

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JF Roudier
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Test Quark chromosphere

Post by JF Roudier » Sun Apr 05, 2015 3:58 pm

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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marktownley
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Re: Test Quark chromosphere

Post by marktownley » Sun Apr 05, 2015 4:09 pm

Nice review, thanks! :)
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swisswalter
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Re: Test Quark chromosphere

Post by swisswalter » Mon Apr 06, 2015 6:49 am

Hi Jef

thank you very much for the review
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Montana
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Re: Test Quark chromosphere

Post by Montana » Mon Apr 06, 2015 10:26 am

Excellent :hamster: :hamster:

Alexandra

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Bill Edelen
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Re: Test Quark chromosphere

Post by Bill Edelen » Mon Apr 06, 2015 9:35 pm

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 » Tue Apr 07, 2015 8:43 am

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 » Wed Apr 08, 2015 5:40 pm

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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GuillermoBarrancos
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Re: Test Quark chromosphere

Post by GuillermoBarrancos » Wed Apr 08, 2015 6:37 pm

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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