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Home > Classifieds > Astromart Classifieds > Telescope - Reflectors > Classified #137505

For Sale: 14.5" f4.5 Dobsonian $2100 Price reduced

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This scope was made by Pete Kron. It's mirror has the following configuration:

Strehl ratio .98
Surface Microinch RMS 0.2351 Millionths
Surface RMS error 1/93 Wave
Surface P-V error 1/34 Wave
Wavefront Microinch RMS 0.50 Millionths
Wavefront Peak to Valley 1/16.7 Wave
Wavefront RMS 1/44.2 Wave
Rel Transv Abem (RTA) 0.52 Diffraction-Limited Criteria (F4.3 or larger) - RTA 1.0 or less
Average RTA 0.35 Danjon Couder Condition 1 - Average RTA less than 1.0

This mirror was made by John Hall. What does this mean? This mirror alone is a gem and is capable of 1000X. When skies permitted, I routinely used this scope at 660X with my Takahashi 5mm on a Pocono Mtn. Deluxe 2mm barlow for stunning views of the planets. The scope is that smooth. My biggest hope was to use the mirror in an EQ mount or on an EQ table. The biggest thrill is on using this scope with the 31mm Nagler. Amazing, simply amazing. This scope can do it all and is extremely comfortable to use. It's a flat footed look for a 5'10" person. It is very easy to transport and to set up. It comes with the Tectron focuser, light shroud, el cheapo focuser, collimating tool and Telrad.

If it is picked up, I will include the weights. The scope requires these counterweights with the bigger eyepieces such as the Nagler 31mm because it is so smooth. There is absolutely no jerky motion to this scope. It is not brand new. I only cleaned the mirror one time and will leave it dirty because of the hazards associated with the process.

This scope will be very satisfying to you.

Call Ken at 661-589-8888 evenings and 661-392-2645 days.
 

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