This is disappointing to hear. I always thought that the optics in Televue scopes were as well made as the mechanics.
The Genesis SDF I owned was excellent, as was my Pronto, apart from the chromatic aberration in the Pronto.
Let me preface my comments with this: I am a big fan of TeleVue - especially their eyepieces owning complete sets of some of their more modern designs as well as the Plossls. The only non-TV eyepieces I own are a set of Fujiyama Orthoscopics I had imported from Japan a few years back.
I am also a big fan of testing telescopes in a manner mitigates personal bias and brand loyalty as much as possible.
I have tested a fair number of TeleVue telescopes since the early 2000's. None have been horrible. Two have been truly excellent. Most have been in the middle.
Speaking only for myself, I don't purchase TeleVue refractors for the optics as there are too many other manufacturers who are turning out very nice lenses for less money. When you buy TeleVue, you are buying into a system (and Al's vision) where everything - the telescope, the eyepieces and the accessories all work together in an observing package that is very tough to beat from a usability and durability standpoint. This is a case where the complete system is greater then the sum of its parts.
I did not buy my TV76 for it to be the best optically - if this is all I was concerned about, I would have purchased a diff product. I did buy it to use as a daytime spotting telescope and a low to medium power scope for ultra quick looks at night - its too aperture limited to be a high power planetary telescope. For daytime, the green color and robust build is appealing to me. At night the ability to setup quickly with accessories that work well together is also appealing. And its quite portable.
In any event, the last thing I want to mention is this: I really believe that the majority of folks simply don't know how to test their own telescopes, so have no idea of where it falls on the quality curve. I know there is an assumption that TeleVue has some of the best optics - and this is why I posted my test results. Its a nice telescope, but not optically superb. I bet most of yours are similar.
Edited by peleuba, 09 April 2020 - 07:09 PM.