quick lunt 60mm question

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
Way More Fun to Share It!!
Way More Fun to Share It!!
Posts: 1250
Joined: Sat Nov 24, 2012 2:33 pm

quick lunt 60mm question

Post by highfnum » Sun Dec 27, 2015 5:25 pm

the natural focal length of lunt 60 objective lens is 250 or 300mm? (10 or 12 inch)??

User avatar
Posts: 3253
Joined: Tue Dec 13, 2011 1:23 pm
Location: St Leonards, Australia

Re: quick lunt 60mm question

Post by Merlin66 » Sun Dec 27, 2015 10:12 pm

According to our measures - when doing the early Lunt 60 mod - it was 275mm focal length.
(There's more info in the mod section....)
"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