Quote:
Originally Posted by OneCosmos
Hi,
Just throwing this question out there. Does anyone know what the largest non-professional refractor is in Australia -by which I mean owned by an individual? Perhaps the question should be split into the largest achromatic and the largest APO.
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That would be Barry Adcock's 10" APO triplet (FPL53 based). Barry has made more than a dozen refractors, APOs and achros, doublets and triplets and this recently completed APO has now replaced his 14" Schiefspiegler as his planetary instrument of choice.
His 8" f/30 Coelostat refractor (fixed eyepiece, inside the house) is probably among the largest achromats too, if not the longest, but certainly most comfortable.