William Optics 2" diagonal as shown below with TeleVue ACC-0003 2" SCT adaptor. The diagonal includes a 1.25" eyepiece adaptor. All capture is via non-marring compression rings. The collimation seems excellent in my estimation.
The diagonal is 3" deep. The SCT adaptor is 2 1/4" deep. Total depth of integrated assembly is 5 1/4". Please verify this will clear your scope's base before purchase.
The diagonal was purchased new March 2003. Please note set screw marks on diag barrel from use in my refractor in the photo below.
I prefer to sell both pieces together, although the WO diagonal can also be used in a refractor. Please note that the WO diagonal requires about 1/2" to 3/4" more "in-travel" in your refractor's focus than a 2" AP MaxBright diagonal.
Both together shipped FedEx ground to CONUS for $105. MO, bank check, or PayPal accepted.
WO diag only: $80 shipped
Adaptor only: $40 shipped