Edmund Scientific

This company was started in 1942 by W. Edmund as a Edmund Salvage Co. to handle surplus optics. Their number of telescope models reached a peak in the 1960's, but several telescopes are still offered.

In the 1960's Edmund introduced the Space Conqueror series. This included the 4 " Palomar, which had f/10 spherical optics, a 6x23 finder, 1 " focuser and a small pier-type equatorial mount. The 6" f/8 version had the same finder and focuser, but had a parabolic mirror and a substantial 1" equatorial mount that could be fitted with an optional clock drive.
Palomar 4 1/4"
Also available was a 8" f/8 telescope with a 1 " focuser, 6x50 finder and heavy 1 " equatorial monunt. A clock drive was available as an option. In the 1970's another version of the 6" f/8 was made with a 2" focuser, and the same finder, and equatorial mount noted above. This model included the clock drive as a standard accessory.
Astroscan (2001) 8" f/5 (4001)
The year 1977 brought the award winning 4 " f/4 which was eventually called the Astroscan or 2001. A tough plastic case and optical window encased a very portable richest field telescope with a 3 degree field of view, great for beginners. Included was a simple friction driven 1 " focuser, a table-top mount and a peep sight. The same year marked the introduction of two other unique reflectors. These also had phenolic plastic tubes, but they were mounted on heavy, motorized, equatorial forks sitting on a squat, braced tripod. Declination adjustment was implemented similar to that on the fork mounted SCTs of the day. Because of the relatively high cost of these instruments not too many were sold. They included Model 3001, a 6" f/6 unit with 1 " focuser and 7x30 RA finder, and Model 4001, a 8" f/5 optical tube with a 2" focuser and 9x32 RA finder.
The following year the 6" f/6 reflector noted above was put on a new pedestal mount GEM. In 1980 two more phenolic optical tubes were placed on the same pedestal. These were a 4 " f/4 richest field tube, with a 1 " focuser and a 4 " f/10 tube with a 1 " focuser and 5x24 finder.

© 2001, 2002 - Robert A. Pollock
Page Revised: January 1, 2002