Glenmore, The main reason I asked the question is because it seemed that if AP sold out so quickly there surely had to be some people who wanted them and may...
... I think it is more an endorsement of the execution than of a particular design. Any good design with few air-to-glass surfaces that is carefully made with...
Marc Abbe has uploaded some impressive photos of parts for an equatorial mount he is working on. They are in the files area in the folder "Photos of your...
That really IS nice work. Beautiful machining. As someone who manages other Yahoo groups I am left a little disgruntled. The pictures are hard to access...
A vendor in Germany has just listed this: http://www.astro-professional.com/html/apo115.html 115mm aperture, 800mm focal length. Comes with a 3" Crayford...
... And the ED doublets advertised by the German vendor look like these... http://www.united-optics.com/products/ED_Telescope.htm And the 152mm achromat looks...
... the ... these... ... Right, Alan. Kunming United Optical in China would appear to be the source of the "Astro-Professional" refractors. Maybe we'll see...
They are suppliers not for Astro-Professional only. Look how many 102 doublets were on the market and still are. If 115 triplets will be good, i guess soon we...
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...
