I was reading S&T and I saw a nice solar scope (lunt) and was very curious as to what the function of the "pressure tuner" is? Does this change the air pressure and ever so slightly push apart the lens elements to modify focus? Or does this like change the density of the air to somehow do something? I have never looked thru a solar scope so I am completely ignorant of this stuff.
Why do solar telescopes need "pressure tuning"?
Started by Peter Glus, 10/20/2011 03:10AM
Posted 10/20/2011 03:10AM
Opening Post
Posted 10/20/2011 03:38AM
| Edited 10/20/2011 04:01AM
#1
From what I understand about the pressure tuner, adjusting it slightly changes the air pressure in the ota causing the refractive index of the air inside to change, hense modifying/ tuning/ optimizing the band pass to the focal plane.
I'm sure someone will correct me if off base, or completely wrong.
I'm sure someone will correct me if off base, or completely wrong.
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Posted 10/21/2011 08:10AM
#2
http://www.astronomics.com/main/category.asp/catalog_name/Astronomics/category_name/TFUFA7E0JNPG9N58Q4JGLPU8D7/Page/1
Solar Telescope do not "need" pressure tuning, it is just one way to get tune them precisely.
Jon
Solar Telescope do not "need" pressure tuning, it is just one way to get tune them precisely.
Jon
Funding Member
