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Scopetronix adapter...

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  • Larry Stedman
    As to the Scopetronix adapter... yes, it works best with an eyepiece with long eye relief--e.g., a long focal length Plossl-- because that will minimize
    Message 1 of 1 , May 1, 2005
      As to the Scopetronix adapter... yes, it works best with an
      eyepiece with long eye relief--e.g., a long focal length Plossl--
      because that will minimize vignetting. But even vignetting has its
      own aesthetic, as it frames the object in a dark circle. Full globe
      Moon shots are particularly nice that way. (And with other
      eyepieces, one can eliminate the vignetting with a little optical
      zooming.)

      Note also that one isn't confined to low power. Simply barlow
      (2x-3x) say a 25mm Plossl, and with the camera's optical zoom
      (3x-4x), one can achieve high mags (200-300x). (Barlow + optical
      zoom yields from 6x-12x the original eyepiece's mag.) At high
      powers, though, images are more subject to seeing effects and
      ensuring the precise right focus is trickier (one's eye is more
      forgiving it seems).

      If you have a digicam, I'd highly recommend trying some handheld
      shots of the Moon and the filtered Sun--and also trying or buying a
      digi-t adapter kit. Plus, mount the digicam on a tripod and take
      some long exposure (12-16 second) shots of constellations (or stacked
      short ones, otherwise). The results won't match those of Hubble, but
      you'll be amazed. It does open another dimension for the hobby.
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