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Old 25-02-2011, 06:14 PM
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sopticals (Stephen)
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Join Date: Jun 2010
Location: Oamaru, New Zealand.
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Quote:
Originally Posted by casstony View Post
A possible combination:

Low power: Nagler 31mm

Middle powers: William optics Binoviewer (comes with 20mm wide angle eyepieces and a barlow nosepiece). Also buy a GSO 2" barlow, unscrew the nosepiece and screw it to the nose of the diagonal (would give about 3x I think).

High power: Pentax XW 5mm.
Hi Al I use the click stop baader zoom with my 14" f5.1 dob and like casstony have the 2" GSO barlow which used in conjunction with the zoom eyepiece gives down to an equivalent of a 4mm focal length high end eyepiece (of course seeing would have to support the resultant magnification). I also have the Williams optics binoviewer (which works a treat) the barlow supplied is 1.6x and should come to focus with your scope as the light cone is not too steep.The supplied eyepiece pair is 20mm and wide angle (66deg). I have since obtained 32mm and 25mm plossl pairs to use with binoviewer and these work well also.

Stephen
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