You mean James Cyril Stobie B.E? He use to be a member of the Astronomical Society of South Australia. His "stobie poles" were infamous among the members in that they supported the streetlight rigs that often annoyed observers with their light pollution.
The "telephoto lens" is really a 17th style telescope I made so that I could see what the astronomers of the era "saw" - before the invention of the achromatic lens.
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For focusing the tube slides along the v-shapes. It is held against a perforated lens cap at the end of the bellows. The elastic band maintains tension.
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The business end of the telescope. The lens cell with the 30mm plano-convex.
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The telescope with a Huygens eyepiece (set of two plano-convex lenses). So, the telescope is entirely non-achromatic, no coated lenses. It performs rather better than I would have expected.
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A snapshot of the moon taken hand-held through the eyepiece at 26x with a Canon compact camera. Shows more detail than in direct "telephoto" mode.