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Celestron T-Adapter for Nexstar 4, C40 and C9010 Sep 2016
“When I 1st bought a T mount for my Nexstar 4 I realised I bought the one that was for the eye piece, then looked up for the C40/90 Adapter that attaches to the rear to join up with the mount. It's Perfect size and stable when screwing the attachment on the back of the telescope, I would recommend it and also recommend using the site for other products relating to the telescope. Just need patience to get the threads of the item and Nexstar 4 in line. ”
Marumi T2-Ring4 Mar 2013
“Good well made T-2 ring, fits my Nikon bayonet F mount very well. The threaded end is well turned,and fits my barlow lens snugly. Does the job well. ”
Bresser camera adapter 31.8mm/1.25inch19 Jun 2012
“Well-made adapter. The only thing that isn't clear to me is why it isn't noted on the site that this adapter can be used with well-made oculars for "eyepiece projection" ”