Synta 6 inch f /8



Synta Sky-Watcher 6 inch f /8 Doublet Achromat Refractor

In the recent past, my optical astronomy has involved using a Synta Sky-Watcher 6 inch f /8 refractor (150mm aperture with a 1200mm focal length) mounted on a Meade DS-16 German Equatorial pier mount. The refractor tube balanced nicely as shown in the picture due to the declination tangent arm being mounted backwards where it is easily reachable for manual adjustment!

Full size 611x590 pixel version of picture at left: SkyW_6f8_DS-16mount.jpg

A closeup of the refractor tube is also shown. The refractor uses a two element achromat lens which appears nicely coated and was factory rated at 1/6th wave SA if I remember correctly. And after a straightforward collimation and startesting I believe it is at least that good, allowing me to see a really nice transit of Io on Jupiter. Typically several bands on Jupiter are seen and Saturn's rings are really nicely split with Saturn's shadow also seen on the rings. All high power observations were aided by a Sirius Optics 1.25 inch MV-20 low pass filter. Images of a high voltage power tower about a km away from my house with the Synta and the MV-20 clearly showed the individual bolts with increased sharpness and much of the violet cast removed! I traded the Synta and a Kenwood TS-440S for a Kenwood TS-850S ham radio in 2004.


Full size 495x623 pixel version of closeup picture of the optical tube at right: SkyW_6f8_tube.jpg



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Copyright 2003, 2004, 2005, 2006 by Dr Dale A. Woodside and Macquarie University, all rights reserved.

Last Modified: May 16, 2006
Dale Alan Woodside (dalew@physics.mq.edu.au)
Web page Copyright © 2003, 2004, 2005, 2006 by Dr Dale A. Woodside