Telescopes I currently own
Uses/ Notes
8" f/3.9 Newtonian (2020) Use with an Explore Scientific coma corrector on a Twilught II mount.
8" f/8 Astrotech Ritchey–Chrétien with JMI EV-1 focuser and Robofucus (2012) Used for CCD imaging with 0.8x focal reducer/field flattener.
132 mm f/7 William Optics 20th Anniversary Triplet Apo (2017) Great color correction and resolution for visual use and imaging.
190 mm Skywatcher Maksutov-Newtonian with Parallax rotating rings (2016) Performs like a 7" apo! Outperforms many larger telescopes at star parties. My favororite telescope to use!
70 mm f/6 Stellarvue SV70T apochromatic refractor (2016) Wide-field astroimaging! Airline carry on scope!
10" f/6 Discovery Newtonian (2015) Used for CCD imaging with Paracorr II coma corrector yielding f/6.9
Sleeping Giant, Kauai with my daughters Lauren and Ashley in 2011.

Kaumukani Ballfield, Kauai. March 2015

Telescopes I previously owned
Criterion RV6 6" (0.15 m) Newtonian (1981) Excellent optics. Sold (big mistake) in 1985 to build a 10" dob.
4" (102 mm) f/7.9 Stellarvue SV102T apochromatic refractor (2006) Excellent all around apo. Hated selling it, but bought larger apo in 2017.
80 mm f/6 Stellarvue 1010 achromatic refractor (2003) Nice flat field doublet. Great with H-alpha filter, color fringing on bright stars and moon. Sold in 2005 to buy APO.
4" (105 mm ) f/6.2 Stellarvue SV105 apochromatic refractor (2005) Great for imaging and viewing. Excellent optics. Needs field flattener for imaging. Sold in 2006 to buy SV102T.
5" (127 mm) f/10 Celestron C-5 Schmidt Cassegrain (2000) Best SCT ever made. Sold in 2009 (had too many scopes).
8" (0.20 m) f/7 Discovery Newtonian (2001) Excellent optics, great visual views, no visible coma, excellent astrograph. Sold in 2010 for move to Hawaii.
4" (102 mm) f/10 Buschnell 4000 Schmidt Cassegrain (1995) Solar eclipse airline travel scope. Sold in 2013 to a Maui whale photographer.
70 mm f/6 Stellarvue SV-70 achromatic refractor (2011)

Guidescope and wide-field spotting scope. Sold in 2014.

14" (0.36 m) f/6 truss tube Newtonian (2006) Deep sky observing, excellent 1/25 wave primary! Sold in 2020.
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