Orion 120 ST Upgrade

I really enjoy my Orion 120ST.
It's the scope I use the most. This scope is a great performer on deep sky viewing.
But one of the cons is the focuser that comes with it, the stock focuser isn't quite smooth enough for easy high power focusing and you can forget about any sort of AP.

So this Christmas I got a 2" Crayford Focuser from Scopestuff.
It totally changed the life of this wonderful scope


This was a simple upgrade. All you have to do is remove the 3 screws then new focuser just dropped in.


3 comments on Orion 120 ST Upgrade

  • Eric says:

    Hi, I am considering this focuser on the same scope. Is this model FRM3 96mm? Does it drop right in for a perfect fit or did you need FRC4 3/8″ adaptor? Thanks

  • admin says:

    Greetings Eric

    I do believe it is FRM3??
    I also ordered the Adaptor Ring but I think it was #FRC5 4.4″ ID Tubes (120mm Skywatcher, Celestron, Orion, Konus, etc)
    Your bet is to drop an e-mail to ScopeStuff.
    I have to say that I have really enjoyed that Focuser and it is well worth the cash.

  • Eric says:

    Thanks for the reply Guss! I will check with them on this. Looks like a very nice focuser