This special eccentric or off-centre 1.25" to 2" eyepiece adaptor, with built-in 2" filter thread, allows cameras and 1.25" eyepieces to be inserted in a 2" eyepiece holder and rotated in the eyepiece holder so that the whole 2" field can be examined - for guide stars etc - without moving the telescope or guidescope.

The AC623 features an integral 2" filter thread to take standard 2" filters as well as an anti-slip recess and two large clamping screws.

The adaptor fits all 2" eyepiece holders.

Made of hard-anodised aluminium and hand finished in England.