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GSO 8 inch f/5 ota for visual.

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#1 doug mc

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Posted 27 October 2020 - 01:59 AM

Thinking of getting one of these. I had the 6 inch f/6 version a while back and really liked it. So from those of you that actually have used one, what have you experienced with its visual performance. 



#2 osbourne one-nil

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Posted 27 October 2020 - 02:22 AM

I've had this configuration in the past (probably was a GSO variant) and I actually really liked its compact nature. From memory I was really happy with the views too but then I don't obsess about edge-performance and collimation. If I look through an eyepiece and it looks about right, I just tend to get on and enjoy some panning about. If you like wide, immersive views rather than the sharpest possible views, it could be for you. Having said I didn't obsess about collimation, it did need collimating quite a lot! I found the eyepiece level quite low, but it would probably be the same as your 6" f8 if it's dob-mounted. 



#3 izar187

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Posted 27 October 2020 - 08:50 PM

Taiwanese older version for me too, I assume to be GSO.

Another vote for the compact size.

Alt-az mount on a pedestal in my case: pipe mount.

One position seated viewing and/or stand option, by choice.

Very comfortable and adjustable focuser positions are doable, for just me(set tall) or for outreach(set low)

Tube is short enough to transport upright in my vehicles, with the mount in three pcs behind a seat.

GSO has a very good reputation on mirrors.

The 8 f/5 clearly out resolves my 6 f/5, on everything.

It is my preference over an 8 f/6 dob.



#4 doug mc

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Posted 28 October 2020 - 04:23 AM

This is the OTA i am looking into.

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#5 GUS.K

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Posted 28 October 2020 - 07:23 AM

Hi Doug I have the same scope from Bintel which works great as a visual set up, eta Carina through an Ethos 17 & UHC filter is spectacular. For the price, definitely worth it.




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