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Focus issue

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#1 twjs

twjs

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Posted 15 September 2019 - 12:07 PM

Got  a nice day today with average seeing so setup the LS80 and was able to get a relatively crisp disc thru a 10mm Delos with proms between 3 and 5 oclock on the disc. For grins I switched to a 6mm Delos and no matter what I tried I couldn't even get close to focus. I moved the B18 in and out a bunch of times, no joy. All I got was a tiny blurry almost airy disc.confused1.gif

 

Any help please?


Edited by twjs, 15 September 2019 - 12:08 PM.


#2 Gary Z

Gary Z

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Posted 15 September 2019 - 01:07 PM

Hello, TWJS,

 

Have you ever achieved focus with a 6mm eyepiece prior?  Is this your first use?

 

According to the website, a zoom eyepiece comes with the LS80, with a zoom range of Solar 7.2mm to 21.5mm and it is recommended for . Simple eyepieces with narrow field of view are recommended. (25mm thru 8mm)

 

 

The manuals can be downloaded here:

 

https://luntsolarsystems.com/manuals/

 

I know this isn't much, but it may answer your question.

 

Gary



#3 twjs

twjs

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Posted 15 September 2019 - 01:38 PM

Hello, TWJS,

 

Have you ever achieved focus with a 6mm eyepiece prior?  Is this your first use?

 

According to the website, a zoom eyepiece comes with the LS80, with a zoom range of Solar 7.2mm to 21.5mm and it is recommended for . Simple eyepieces with narrow field of view are recommended. (25mm thru 8mm)

 

 

The manuals can be downloaded here:

 

https://luntsolarsystems.com/manuals/

 

I know this isn't much, but it may answer your question.

 

Gary

Thanks Gary, not with th 6 no, I've been sticking with 10 mm so far.




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