I also looked a Venus. It was strange but at medium power, around 60x for this scope, I could easily see purple fringing as this is an achromat. But at hight...
Is there some inherent problem with using a field flattener for visual use in a refractor, specifically the 102ED? I always see listings and ads for flatteners...
Wonderful first light Larry! My SV70 has quickly become my grabbengo of choice now. The BO/TMB's do have a bit of lateral color to them, not very much. My 6mm...
Good question William. I can only guess that the field flattener/focal reducer will alter the length of the light path making focusing with an eyepiece...
Let me explain our rationale when we selected f-7. It is interesting to note that while we do have very large and very fast dual fluoro apos that are made in...
Clang, clang-clang-clang-clang-clang: Round One goes to The Pup. We could not see it. Scopes in the ring for the bout included: Bob Pitney's brace of SV...
... visual ... except ... visual ... Not that I can think of ... The ones I've used show no restriction when used visually. Unless what David mentioned is in...
... Vic, Another thing to consider -- for visual use, many observers like to use binoviewers. I know it depends on drawtube diameter, but how likely will an...
Taylor, sounds like you had a lot of fun even if the Pup did not show up. Hind's star must have been spectacular in those scopes. David E ... From: "Taylor J....
I splurged for the soft C130 case. I intended to use it carry my 80ED for an upcoming airline trip to Zion and Grand Canyon, but I will end up using it all...
Pushed the SV102ED pretty hard for this shot, shooting at f/40. Seeing was good, but not great, with very good transparency. Lots of fine structure on the...
I swear, that looks like the head of Batman in the middle of Cyrillus. David E ... From: "Jim Ferreira" <ferreira1@...> To: <Stellarvue@yahoogroups.com> ...
So, David, did you, like, do an all nighter last night? You might consider switching to a decaffinated brand...... ;-) Cheers Jim Livermore CA ... Cyrillus. ...
... Indeed ... it caught those who hadn't seen it before completely off guard. Quite bright and very colorful ... in fact, I was surprised how bright it was....
... Can you elaborate on this Vic? What EP's perform poorly? why? Since the highest volume scopes are FAST reflectors, at about f4.5 - f5.5, I would...
Bill, Unfortunately I can't remember the name of the person on Cloudy Nights who came up with this formula so I can't properly give him credit but when buying...
Hi Carl, I've been using the SV70ED as a guidescope with an SSAG as well. The combo works very well. I unscrew the SSAG's 1-1/4" nose and connect it to a...
I purchased a used SV85s in December. Had to wait a while before I could adapt my setup to include this scope AND get come clear skies. Here's a picture of the...
David, Again, thank you and the seasoned members for taking the time to educate the neophytes in this hobby. This is good knowledge about optics. The...
The air was steady enough for 160x through binoviewers! Yes! Checked out the mountain field along the terminator west of Aristoteles. For the first time I...
David ... I think the WIDE AFOV issue holds true with ALL EP's, at any F ratio.... hence the number of elements keeps increasing when AFOV increases. The...
I got a good quick at the Moon last night from the front porch, since we finally had some nice, clear weather. I had the whole house to myself and what...
Thank you for all the kind comments. The technical details behind the picture are below. Hope that helps you Jim. Lens: Stellarvue SV85S 85mm F6.9 Mount: Orion...
Hi folks! Below is a preliminary image of M81 and M82 in Ursa Major from last night. It's 33 8-minute subs taken at a dark site in Arizona through the SV105...
Tony: Beautiful shot! I am glad we exchanged field flatteners with you as the one you have was designed specifically for the 105 f-7 optical system. As Jon...
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