SW Evostar 72ED DS-Pro tube diameter ??

[Skipper Billy]

I am thinking of replacing the standard tube rings on my 72ED with Primaluce ones but I don't know the tube diameter and my scope isn't accessible for a while and FLO dont have one in stock.

I am thinking of these https://www.firstlightoptics.com/tube-rings/primaluce-lab-80mm-plus-tube-rings-for-airy-apo65f.html

Could anyone with such a scope measure the tube diameter - the part where the tube rings would sit ie the black part please.

I would be extremely grateful !

[paulastro]

Holding a steel rule over the top of the tube I make it 75mm.

[Skipper Billy]

Thanks Paul - the rings are too big then - boo hiss.....

Thanks for the info.

[Davey-T]

Skywatcher sell 76mm rings so presumably that's them.

Dave