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My current optical tube assembly (OTA) was first owned by master
optician Thomas Back in 1987. Mr. Back confirmed to me that this scope
had the same serial number as his and that "Roland [Christen, the designer]
told me it had the
NASA glass [KzFS-1 in the center element], and that it made it the best
of the Super Planetary apos". Mr Back also confirmed that it had
the blue coated cast 2.7" focuser, with ultra flat black velvet (added
by himself) to the dew cap for maximum contrast, and that it had the
optional compression ring adapter. Full size 1344x937 pixel version of picture at left with University 8x50: AP_6in_f12_OTA_finder.jpg
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| The 6 inch f /12 scope is currently mounted on my Astro-Physics AP 900GTO mount in tandem with an Astro-Physics Starfire 102 f
/8 APO. See my astronomy home page for jpg photos of the complete
setup. Both of these Astro-Physics APO scopes are in fine
condition and put up really nice images free of false colors. The
6 inch f /12 Super Planetary
in particular (with its huge 1828 mm focal length) when combined with a
Pentax SMC 0.965 inch O-6 (6 mm) ortho eyepiece puts up a very sharp
image at 1828mm/6mm = 305x magnification (about 51x per inch) even in
mediocre seeing. And the long focal length allows for greater
image scale than a typical 6 inch refractor with any given eyepiece. |
To check out my Mathematical Physics research, visit my physics web site at URL: http://www.physics.mq.edu.au/~dalew/
Copyright 2003, 2004, 2005, 2006, 2007, 2008, 2009 by Dr Dale A. Woodside and Macquarie University, all rights reserved.
Last Modified: May 20, 2009 Dale Alan Woodside (dalew@physics.mq.edu.au) Web page Copyright © 2003, 2004, 2005, 2006, 2007, 2008, 2009 by Dr Dale A. Woodside