Just purchased a used orange Celestron C8SE XLT optical tube SCT (got to love this new orange rendition of the C8 - I prefer this color it to my first SCT - long gone 1981 orange fork mounted C8). It's been 7-8 years since I have had a standard C8).
This C8 has absolutely no image shift - smooth !
I attached my Celestron f/6.3 (Japan) focal reducer and Baader C8 clicklock adapter.
The inserted the TEC turret. Extremely secure!
Inserted a TV 26 Plossl eyepiece- easily reaches focus on a nearby (.5 km) tower.
A note on the TEC turret:
It has a non removable 2" barrel and only accepts 1.25" eyepieces.
The 2" barrel length is 27mm.
A note on the Baader 2" C8 clicklock adapter).
It has a working length of 42mm.
Therefore this combination is wasting about 15mm of light path (say 12mm to give clearance
bewteen the optical surface of the f/6.3 focal reducer and the front of diagonal 2" insertion barrel).
Should I be concerned with this excess 12mm light path distance?
There are alternatives (albeit limited) to possibly reduce this 12mm light path.
The Televue 2" short SCT adapter is discontinued, any other possible solutions?