Re: On AP Telescopes
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I notice Ed went back to the early, pre-ED Starfires, but no further back. Too bad as the old 5" F6 was/is a complete blast. Yeah it had some residual aberrations but a 4.5" to 4.0" stop knocked them down without too much of a hit in resolution. And with the reducer, wow, was it ever a bright telephoto/astrograph (for film back then). There was also the 4" F6 "Standard Christen Triplet", "pre-Traveler" from back then too. Again, with the reducer it was/is a dynomite telephoto, very sharp, color free and easy to handle. One of the really dumb things I have done (and there have been many) was selling the best sample of that one I had.
On Mon, Nov 22, 2021 at 10:56 AM M Hambrick <mhambrick563@...> wrote:
Great Video !