Current Price: $500.00
Buy It Now Price: $0.00
Bids: 3

  • Up for auction is my Questar 3.5" Maksutov Cassegrain Catadioptric Telescope also referred to as the "Standard Questar". 

  • It is a small footprint "table top" type of telescope about 14" high and weighing about 7 lbs.

  • Please note the following details:

1) The serial no. is 9-CV-714-BB.
2) This telescope was manufactured on 23 July 1979.
3) I had it serviced on 18 July 2003 by Questar Corporation, New Hope, PA, in order to continue maintaining its capabilities. At that time, Questar also reflocked the dew cap; provided a 2003 updated Instruction Book; and supplied a new Powerguide II retrofitted to the telescope.
4) This is a WORKING telescope which also happens to be a gem to look at.
5) Thus, I have used it not only to make visual observations with the 16 mm and 24 mm Brandon lenses the telescope came with but also to take photographs of the Moon, Sun, Mars, Jupiter and Saturn, among other objects. The photographs were taken afocally by two different methods: a) Using a Scopetronix 18 mm Wide Angle eyepiece coupled to a Nikon 4500 camera and b) Using a Philips ToUcam Pro II Webcam.
6) The attached photographs show various aspects of this telescope as follows:
6a) The first image shows the telescope mounted on its three legs. This is the setup which I used to make my observations.
6b) The second image shows the following items going clockwise from the top: The telescope's case fully loaded with the telescope, the legs in their respective pouches, a Brandon 16 mm eyepiece in a pouch, and a diaphragm in another pouch; the 2003 Instruction Book; the "famous" 1976 Blue and Green Instruction Books regarding the telescope and using it with a camera, respectively; and, Powerguide II. 
6bb) The Powerguide allows the telescope to track an object along the Right Ascension provided the telescope is set up properly equatorially pointing to Polaris. Thusly, I was able to acquire beautiful images making only minor manual corrections for Declination.
6c) The third image shows the three legs, the telescope by itself, a front lens diaphragm, and a Brandon 24 mm eyepiece.
6d) The fourth image shows the telescope with a moon map on its barrel and a star chart on the dew cap. I found the star chart to be particularly helpful in that it showed the stars on each month and you could rotate it to the month in which you were observing the sky and correlate to the constellations. Indeed, this telescope constitutes an excellent teaching tool for making visual observations.
6e) The fifth image is looking down into the main mirror. Please note that the mirror is the original mirror.
6f) The sixth image shows the back of the telescope where the controls are: two levers to bring up the main telescope and the Barlow, respectively, as well as the focus rod knob.
6g) The seventh image shows the empty case. Please be aware that there are scuff marks inside the case cover on the left side and inside the box itself on the right side. These are not visible when the box is closed and they are cosmetic meaning that they do not impair the telescope's ability to function as it should.
6h) The eighth image shows the closed case. Again, it has a few marks due to its age and, again, these are cosmetic meaning that the case properly closes with fully functioning latches and allows the telescope to be easily and safely transported.
6i) The ninth image is the shipping drum in which the telescope stored in its case will be packed, the whole placed in a box and shipped to you. This is the same drum which was used by Questar to send me the telescope after servicing in 2003.
6j) The tenth image is taken from my former website showing images of Jupiter as seen through this telescope and acquired using the Philips ToUcam Pro II Webcam on 24 December 2005 along with a description of some technical details relating to its capture.
6k) The eleventh image is taken from my former website showing images of Saturn as seen through this telescope and acquired using the Philips ToUcam Pro II Webcam on 27 January 2006 along with a description of some technical details relating to its capture. 
6kk) I believe that these images of Jupiter and Saturn are proof of the power of this small telescope to image a target when it is coupled to the technique of image acquistion using a webcam along with appropriate image capture and processing software.
6l) The twelfth, and last, image is a photograph of the waxing gibbous moon as captured by me using this telescope with a 18mm Scopetronix Wide Angle eyepiece coupled to a Nikon 4500 camera. This photograph was taken very recently on 9 August 2019 and it shows how well the telescope delivers an image of one of the most familiar objects in the sky.

  • Lastly, I will pay for shipping by UPS Ground Insured.

Tagged with:

Filed under: High-End Telescope Auctions (USA)