I am not a fan of Afocal NV set up hence it took me a while before I’ve got myself the 55mm TV Plossl to 67mm Fl converter lens. And I was not expecting much more then what I already can see with my prime focus set up. BUT! I must confess, this think is really awesome! Those so called “bright nebulas” just fit right into the FOV and they are bright indeed! My 22” f3.3 scope with the 67mm set up and 5nm Ha filter gets me FOV of 1.45 degrees. Almost perfect for most nebulas!
So last week (around New Moon) I’ve looked at these nebulas: Eagle, Omega, Lagoon, Trifid, Crescent, Pelican, Rho Ophiuchi, IC1470 “Comet”, Eastern Vail was “awesome”, I paned around Western Vail and I paned around N.American. I've also looked at some Sh2 nebulas. I am going to have to start taking pictures, it’s just so nice with lot of details! So, if you have a fast Dob then go for it and try it out! I definitely recommend this set up.
The only problem with this set up is that it looks like a chimney!
First comes the 2” Extender (needed to get this contraption into focus), then comes the TV 55mm Plossl with the 67mm converter lens and the Ha filter, then it’s the 25mm Tamron C lens and then it’s the MOD3. It’s definitely sticking out of the telescope, so one has to be careful not to bang into it. Again, I am not fan of the Afocal NV but in this case, it’s worth it. However, I am not sure I’d use this for astronomy outreach.
So what’s next? I will try to find some Barnard dark nebulas with this set up. And of course, hopefully one day I will finish converting my 200mm f1.8 Cannon lens for use with NV. I still have some “technical” issues with it and NO time to work on it. And based on what the 67mm Afocal NV set up can do for me, who knows if I ever finish the Canon project at all.