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finderscope with diagonal for guiding?

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5 replies to this topic

#1 knell18

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Posted 25 November 2020 - 01:27 PM

Just wondered if it were possible to use a finderscope with diagonal for guiding. I dug out a brand new stellarview 9x50 with non removable diagonal. The eyepiece is removeable and it has a focuser. thanx.



#2 Tapio

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Posted 25 November 2020 - 01:31 PM

Maybe. Is there a way to focus it ?

Easy to test though.



#3 jrcrilly

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Posted 25 November 2020 - 01:33 PM

If it will come to focus, it will work. The guiding software sorts out the axes and directions anyway.


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#4 alphatripleplus

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Posted 25 November 2020 - 02:33 PM

I guess this is the finder. If the diagonal is rigid enough with a guidecamera on the end, it should work. I would make sure those thumbscrews are tight.



#5 Andrew Brown

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Posted 25 November 2020 - 05:42 PM

As has been said it depends if there is enough travel on the focuser to match your guide train. 

 

You'd think that would be a said. But it doesn't always work out that way. 



#6 starbug

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Posted 27 November 2020 - 06:54 AM

You probably CAN remove the diagonal (unscrew the whole piece showing dark in the picture) from the tube and attach a 2" helical focuser. I did this with my TS-Optics 80 mm finderscope.




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