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I'm using the 1.25" T-mount adapter that came with my ASI 183MC Pro camera to connect it to my Skymax 127 OTA (which has the 1.25" aperture).
I noticed though that the T-mount adapter itself screws into the camera filter or extension tubes and keeps going in until it hits an obstruction - in my case a 2" UV/IR filter.
If the T-mount had a wider flange on the 1.25" side it would stop it disappearing into the filter.
Any thoughts what I'm doing wrong ?
Thanks
Rig 1: Skymax 127, ASI 183MC Pro/ASI 120MC-S, ASI 120MM-S Guide, HEQ5 Pro, ZWO EAF, Kstars/INDI/EKOS on Ubuntu
Rig 2: WO Zenithstar 61 with Flattener 61A, Star Adventurer Pro, Intervalometer