Doubt about internal ERF...

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Ronnie_Clayton
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Doubt about internal ERF...

Post by Ronnie_Clayton »

Hello friends.

I would like to try my SolarSpectrum in a 80mm F/7 APO, but I don’t have a external D-Erf for it. Can I use a Baader H-Alpha 35nm (2”) as an internal ERF? (in front of the telecentric lense)?

BR

Ronnie


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marktownley
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Re: Doubt about internal ERF...

Post by marktownley »

Absolutely, no problem with that at all.

Welcome back BTW Ronnie :)


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Ronnie_Clayton
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Re: Doubt about internal ERF...

Post by Ronnie_Clayton »

Many thanks for you quickly answer Mark!

I visit this wonderful site every day... but unfortunately I have just a few solar sessions during the year, normally during the autumn/winter here in Brazil. That´s why I haven't posted anything these months. But my 2020 season will start in a few days and I´ll post some pictures here! :-).

Best Regards!

Ronnie


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