Focusing Lunt Telescope

Since I had issuing on the first attempt at using the Lunt telescope, I had to wait until the next clear day.  This time I had a much better experience.  I read that you had to not push the blocking filter all the way in.  There was a holding screw so I opened it out and then didn’t push the blocking filter all the way in and then locked the hold screw in.  I also set the the focusing ring to around half way.

This time I was able to get a crisp image.  I didn’t have luck with the pressure tuning but there was some hazy so will try again on a perfectly clear day.

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How to position a Lunt Blocking Filter

In the process of taking parts of the Lunt LS50THA apart, I wasn’t sure how to position the blocking filter.  Both sides had the same screw fitting.  So, I emailed Lunt and got clarification.  One side has a blue/green tint.  That side should go towards the scope.  The other side has a red tint and that goes towards the eyepiece.

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