st80 with solarmax 60 double stack front ealon

Frankenscope? Let's see it!***be advised that NOTHING in this forum has been safety tested and you are reading and using these posts at your own peril. blah, blah, blah... dont mess around with your eyesight when it comes to solar astronomy. Use appropriate filtration at all times...
Post Reply
BertUK
The Sun?
The Sun?
Posts: 16
Joined: Fri Aug 14, 2015 8:57 pm

st80 with solarmax 60 double stack front ealon

Post by BertUK » Thu Oct 01, 2015 8:28 pm

I have just purchased a front etalon sm 2 60 filter ,i also own a sm 2 60 with bf10.
can I buy an adaptor and use both the front etalon and bf10 directly on an st80,does the front etalon have a built in erf.
curiosity has got me wanting to see if the view would be any better using an 80mm refractor rather than the dedicated sm60.

User avatar
Merlin66
Librarian
Librarian
Posts: 3169
Joined: Tue Dec 13, 2011 1:23 pm
Location: St Leonards, Australia
Contact:

Re: st80 with solarmax 60 double stack front ealon

Post by Merlin66 » Thu Oct 01, 2015 10:52 pm

I used a similar DS set-up on the ED80 using the original SM60 filters.
Both the SM60 filters are fitted with ERF.
You'll need a machined adaptor cell to fit the ST80 and also (need to check the current threads?) probably an adaptor ring between the TMax thread of the front filter and the front thread of the rear filter.
http://www.optcorp.com/solar-telescopes ... .html?p=18
(But currently don't show Coronado adaptors???)
http://www.opticsplanet.com/coronado-ad ... lters.html
http://www.star-works.it/accessories_eng.html
The DS results on the ED80 were much better than on the SM60 scope.
"Astronomical Spectroscopy - The Final Frontier" - to boldly go where few amateurs have gone before
https://groups.yahoo.com/neo/groups/ast ... scopy/info
"Astronomical Spectroscopy for Amateurs" and
"Imaging Sunlight - using a digital spectroheliograph" - Springer

BertUK
The Sun?
The Sun?
Posts: 16
Joined: Fri Aug 14, 2015 8:57 pm

Re: st80 with solarmax 60 double stack front ealon

Post by BertUK » Fri Oct 02, 2015 7:14 pm

thanks for the info merlin,does the diameter stay at 60mm because of the filter diameter or 80mm for the st80?

User avatar
Merlin66
Librarian
Librarian
Posts: 3169
Joined: Tue Dec 13, 2011 1:23 pm
Location: St Leonards, Australia
Contact:

Re: st80 with solarmax 60 double stack front ealon

Post by Merlin66 » Fri Oct 02, 2015 10:55 pm

Bert,
Instead of the 80/400 f5 you have with the ST80, you'll end up with a 60/400 f6.6 system.
"Astronomical Spectroscopy - The Final Frontier" - to boldly go where few amateurs have gone before
https://groups.yahoo.com/neo/groups/ast ... scopy/info
"Astronomical Spectroscopy for Amateurs" and
"Imaging Sunlight - using a digital spectroheliograph" - Springer

Post Reply

Who is online

Users browsing this forum: No registered users and 1 guest