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Focus for Esprit 100ED

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#1 jdavis40

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Posted 20 October 2020 - 09:36 AM

I recently bought an Esprit 100ED (yay!), and I'm wondering about focusing solutions.  My other scope is the EdgeHD, and the Bahtinov mask works fantastically.  Unfortunately, I don't see a Bahtinov for the 100ED.  Is there a focusing method used to ensure optimum results?

 

I have the ASIAir Pro that also seems to have a focusing tool, but I haven't tried it.  Is targeting the lowest possible HFD value a realistic method for achieving focus?

 

Thanks!

John



#2 Midnight Dan

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Posted 20 October 2020 - 09:48 AM

There are plenty of Bahtinov masks that will work with the Esprit 100.  Astrozap makes a variety of them that will work with any size scope:

 

https://astrozap.com...focusing-screen

 

 

-Dan


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#3 Deesk06

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Posted 20 October 2020 - 09:50 AM

You can order any size here https://www.amazon.c...m/dp/B07H49J63H and plenty of other places. 

 

Alternatively you can use FWHM measurement in your capture software if it does so. I would figure that most do.  


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#4 ShortLobster

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Posted 20 October 2020 - 09:56 AM

You can use the ASIAIR focusing tool if you have the ZWO EAF focuser. It doesn't work with other brands. It does work really well for me. 



#5 SilverLitz

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Posted 20 October 2020 - 11:07 AM

Nothing special regarding Esprit 100.   This is what I have been using for 1.5 years with my Esprit:

 

https://www.bhphotov...S_MASK_FOR.html


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#6 jdavis40

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Posted 20 October 2020 - 05:59 PM

Somehow my Google searches didn't come up with these options.  I guess I had expected one specific to the model, as the EdgeHD was.  Anyway, I've got one on order now.  Thanks everyone!




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