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Hi Vic,

I just wanted to say that I think the SV90T is one amazing little the scope. The FPL-53 optics provide some of the best refractor images I’ve had (previous Tak and AP owner), the OTA is solidly machined and aesthetically pleasing in the powder white,  white,  and the FT focuser makes focusing a breeze! I took it out for a spin last night: the Orion Nebula, the planetary nebula “Jupiter’s Ghost,” the open cluster M41,  M41,  the M3 globular, and Saturn all looked incredible! The moon using a 4mm Nagler was spectacular @ 158x, and I am sure I could have pushed it towards 200x easily.    Thanks a bunch to you and the SV team!

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One of the greatest pleasures I enjoyed with my SV90TBV was binoviewing. The SV90TBV, of course, had a removable tube section to to shorten the light path, allowing the use of binoviewers without supplemental corrective optics. Not so with the SV/TMB105 (f-6.2), which doesn't have a removable tube or extender to shorten the optical path for binoviewing. Since acquiring the 105, I have been doing strictly monoviewing. But I really miss the binoviewing experience, so this morning I dug out the Siebert 1.6x optical corrector assembly that came way back with my original SV-BV1 binoviewers and see if I could come up with a configuration that works with my Denks and the 105.

I had gone through this exercise a few years ago when I first bought the SV-BV1, trying various binoviewer/OCA/diagonal configurations that worked with the SV102EDT, SV85S, and Nighthawk Classic that then comprised my refractor collection. (A report of that exercise may be found in the "Files" section of this group.) Anyway, to make a long story short, the configuration that works with the SV/TMB105 is as follows: 1) Denkmeier Standard BV, 2) Siebert 1.6x OCA lens cell w/o extension tube screwed directly into the BV nosepiece, and 3) Stellarvue Deluxe 1.25" diagonal. This combination allows all of my pairs of eyepieces to come to focus with perhaps 1/8" travel to spare. The key is the use of the 1.25" diagonal, which has a shorter light path than the typical 2" diagonal. Fortunately, the SV Deluxe 1.25" diagonal has a sturdy metal body which easily supports the weight of the binoviewers and pairs of eyepieces. I was focusing on the Devils Head fire lookout approximately 30 miles south of my home, which is about as close to infinity focus as I can get and still have a recognizable object to focus on. Next step -- take it outside at night ;-)

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Hi Vic,

  I just wanted to say that I think the SV90T is one amazing little the scope. The FPL-53 optics provide some of the best refractor images I’ve had (previous Tak and AP owner), the OTA is solidly machined and aesthetically pleasing in the powder white,  white,  and the FT focuser makes focusing a breeze! I took it out for a spin last night: the Orion Nebula, the planetary nebula “Jupiter’s Ghost,” the open cluster M41,  M41,  the M3 globular, and Saturn all looked incredible! The moon using a 4mm Nagler was spectacular @ 158x, and I am sure I could have pushed it towards 200x easily.    Thanks a bunch to you and the SV team!

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I have been reading from this group for a good while learning more about Stellarvue products. In the past I have owned (2) Televue Genesis, (1) Televue 85, (1) Televue 76, 1 Tak Fs-78, and 1 Wo 80mm. All were very good refractors in their own way at least to my eyes.
I have always been intrigued by the enthusiasm of Stellarvue owners. So almost 2 years ago I purchased a used M1 mount and later followed up with a discontinued SV black lightweight tripod. A very good match for light travel, mostly to my courtyard for quick views. I started to feel that SV offered a good value with a great product.  Recently, I turned it up a notch planning for a slightly larger grab and go
scope. My plan was to try out a MG mount and so I posted a want ad and quickly offered one. After struggling back and forth with what size of refractor to replace my WO 80mm with, btw the Wo 80mm is a great scope, decided on a 90mm. So, I began searching and decided on a SV 90mm initially with the FPL53 lens. Before I knew it a email arrived from a previous contact asking if there was interest on my part in purchasing their SV90TBV, otherwise they planned to post a for sale ad in afew days. I quickly accepted the offer and now have my first Stellarvue refractor.
I am a casual observer and my senior HS son peeks occasionally. He just completed his high school senior project working with a mentor learning the
night sky while also learning how to use a Nexstar 8SE setup. His interests are fishing, like mine, but I suspect he will remember his time looking thru telescopes and return later in life just like I did, possibly with a son or daughter peeking occasionally. I still remember my small sears cheep refractor and peeking out my bedroom window.

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