sm60 double stack

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BertUK
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sm60 double stack

Post by BertUK » Mon Sep 07, 2015 8:25 pm

hi,is it possible to buy a sm60 double stack etalon and a bf 10 and use them on an st80 with the correct adaptor to fit the etalon over the end.

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solarmax 60 etalon

Post by BertUK » Mon Sep 07, 2015 8:39 pm

is it possible to buy a solarmax 60 etalon and blocking filter and use them with an adaptor on an st80,also would the aperture be 80mm or 60mm because of the size of the etalon.

thanks in advance.

mick

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marktownley
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Re: sm60 double stack

Post by marktownley » Tue Sep 08, 2015 6:15 am

Well kind of, 'maybe'... It depends whether the etalon in question is actually a primary etalon or a double stacking etalon. Primary yes, double stack I would say no as these are designed to be slightly 'offband' of the Ha centre line, and tilting will not necessarily get it back on band, especially without banding issues...
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Re: sm60 double stack

Post by marktownley » Tue Sep 08, 2015 6:17 am

It would end up being 60mm aperture...

Is this the one you are talking about? http://www.telescopehouse.com/acatalog/ ... uning.html
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Re: sm60 double stack

Post by BertUK » Tue Sep 08, 2015 7:17 am

Yes thats the one.

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Re: sm60 double stack

Post by marktownley » Tue Sep 08, 2015 12:13 pm

That's designed to be used on the end of an SM60 scope
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Re: sm60 double stack

Post by DJD » Tue Sep 08, 2015 3:25 pm

I use a SM40 double stack unit on the front of an 80mm scope and use a BF10
on the back-end. Works fine for me.
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Re: sm60 double stack

Post by marktownley » Tue Sep 08, 2015 4:53 pm

It really is suck em' and see with these things, no hard or fast rules, but, it's an 800 quid suck em and see...
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Re: sm60 double stack

Post by BertUK » Tue Sep 08, 2015 6:16 pm

marktownley wrote:That's designed to be used on the end of an SM60 scope
I do have a solarmax 60 scope mark and that's the reason I bought the extra double stack etalon but iwas wondering if I could take the bf10 off the solarmax and use it with the double stack on a skywatcher st80 with the correct adaptor for the end of the tube.

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Re: sm60 double stack

Post by marktownley » Tue Sep 08, 2015 6:22 pm

Yup, you could. It may or may not work (in the sense you get an 'on band' image with the ST80). If you do go that route I have a specific adapter for this etalon to fix onto a scope, PM me if you want further details on this.
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