The price is getting up there, only another $1200 for the APM 115 scope w/ FT focusser. The Vixen 115 doublet is slightly less, would be interesting to see...
Did SV ever manufacture (not assemble, not test: MANUFACTURE) any Crayford focusers in house? Anyone knows this for a fact? Which model's is/was made in...
I purchased a .85 fl reducer from Borg. Question: is the reducer suppose to pick up the objective rays before the "X" or after the "X" ? Either way, the only...
I don't understand the question. What is "X"? The Borg reducer comes with two aluminum rings. The reducer unscrews and you can put the rings between the two...
Bill; Is the focal reducer the correct distance from the camera sensor? It should have included documentation on installation and use including that info....
Hi All, Hopefully I'll be getting my 115 from SV before the end of the year. This will be my first "apo" triplet scope. I have several ED doublets and I'm...
... Sorry, I should have explained... tilt the X on its side.... I meant, does the focal reducer hit the light path when the image is right side up, or upside...
Awhile back, we discussed using a scope as a camera lens for terrestrial photography. It was mentioned that a good APO Scope will always make sharper camera...
... At 15 ft for the Canon and 32 ft for the Scope..... this benefits scope and penalizes the camera lens.... as the scopes target to lens angle is half that...
... What may be being ignored here is that the scope may have been designed for infinite object distance, at the expense of finite distance objects. It may...
... I thought about this..... but I would consider 32 ft far enough where this should not be an issue.... my thinking is... an infinity subject would come to...
... Ron, the Scope has 2x the fl of the camera lens, so it all comes out in the wash.... the image size of the target was IDENTICAL on the recording chip in...
Ted at Borg just emailed me.... He suggested this FR works very well with all TMB scopes. But IIRC, this is TMB's first ultra fast scope.... I had asked...
I looked at the "original" size image on my monitor and the scope is clearly out performing the camera. You need to open the aperture of the camera from f/5 to...
... Orignal size? There is ONLY one size of that jpeg.... PS CS3 has a ruler tool... measure two areas across the entire chart, you will see the variance...
... I can not follow your thinking.... ... No, this starts to test the image sensor. My goal is to deliver the same size image to the sensor, so we are NOT...
... OK, but both shots are on the same jpeg, so the final size is irrelevant... ... I addressed this.... It's not an issue... ... It doesn't help it, it levels...
Here's the text of our new policy. Feel free to use/modify. regards Greg N. Oh yeah it's for Losmandy not C14. But it is about to be implemented on C14....
... True. Telescope is designed for working in infinity. In these conditions the telescope suffers from big SA. To make test more or less valid, the distance...
... I will try this, its possible the 92ss design makes less than infinity focus tough to deal with.... even though we are only dealing with 15% variance in...
how well will a big refractor lets say my nine inch apo hold up to a big cat lets say 9.25 or a c11 or a c14 I'm rebuilding it and haven't looked through it...
If you mean on Jupiter and Saturn, the usual rule is pretty good: subtract the diameter of the central obstruction for the performance equivalence of the two...
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