Televue SCT adaptor. Is it firm and tight?

Hi guys,

I have a WO SCT 2" diagonal and I love this thing. It screws onto the SCT rear cell and it's tight and firm. However, I am buying a refractor soon, and I was thinking of using a refractor-type diagonal with a TV SCT adaptor on the SCT. This way I can avoid having two diagonals.

My question is, will the TV SCT adaptor clams down the refractor-type diagonal as strong as the SCT diagonal? Also, can this TV SCT adaptor be used on other non-TV diagonals? I have no problem clearing the base and stuff because I am using the SCT on a EQ-mount. But I do have heavy loads at the end and last I want is the diagonal dropping out from the SCT adaptor.

Thanks

Vincent,

I find the "newer" TV adapter (compression ring style) to be even better at clamping down than the screw on type of diagonal. What I mean is the screw on type can have a tendency, if you don't tighten it enough, to unscrew if the OTA is tilted down toward the left and if you have a heavy enough load. Of course this doesn't happen with an alt-az, but does with a GEM. I highly recommend either the Televue or the Astro-Physics model. I use the Televue "Short" adapter with a 2" "Short" Everbright. Clearance is never a problem for me on my N8GPS.

Randy