Criterion Telescopes: Great performance

Performance is the First Reason You’re Proud to Own a Criterion

(Astronomy, august 1976)

In telescopes, “excellence is as excellence does.” The Criterion instruments, with unsurpassed optics, rank among the world’s most widely praised, because they perform brilliantly, reliably and with satin-smooth, effortless ease. The more demanding the conditions of use, the more you appreciate the ability of your Criterion to deliver exciting results. Whichever advanced design telescope you select, you get a superbly engineered instrument, guaranteed unconditionally. When you compare the pleasantly surprising prices you find further reason to choose Criterion. Please note that they are not “base” prices, but include everything described at no extra cost. Only Criterion`s leadership in efficient, modern precision production makes these prices possible.

Dynamax 8 8-Inch Schmidt-Cassagrain. For spectaculars results – effortlessly. Extra features without extra price. 

This “never before” telescope created by Criterion gives you Schmidt-Cassegrain advantages at their best: full 8” aperture, wide field, with flawless resolution, yet weighs only 30 pounds for one-hand portability. It offers unprecedented versatility for viewing, superb telephotography, terrestrial uses, or technical applications. The exquisite optics, combined with super-precise electric drive plus variable drive corrector, combine to insure unsurpassed, unsurpassed, unequalled ease of use because the extra features so necessary for superior results are designed-in and built-in, and included in the price.

Dynascope RV-7 6-inch Newtonian

AC, DC, and manual drives (variable, not just solar). You can easily dial in lunar, solar, sidereal, planetary, etc. rates while observing for extra long monitoring. Large 8X50 finderscope has micrometer screw focusing. Toggle switch with pilot light. Engraved setting circles, observable from viewing position. Three eyepieces included. Star diagonal, latitude adjusters, photo and telextender adaptors, and custom, fitted case. Ready for Total Performance with nothing else to buy!

Dynascope RV-6 6-inch Newtonian. For Exciting Viewing, Superb Value. Price includes built-in precision electric drive.

Professionals and astute amateurs and school or college users by the thousands know the breathtaking performance, this pace-setting telescope achieves. Esquisite optical system includes f8 parabolic aluminized mirror, guaranteed to reach all theoretical limits of resolution and definition. Highly accurate Electric Drive uses regular AC, has smooth, self-acting clutch, permits manual operation. Two 1 ¼ eyepieces, 70X and 140X, included (others available). Highly stable equatorial mount with solid tripod, adjusts ascension and declination. Tube rotates for adding cameras and comfortable viewing. Easy, quick portability. Smooth, brass rack-and-pinion focusing. Handsome, white 50” Bakelite tube maintains perfect collimation. 6X30 finderscope. Fine workmanship throughout.

Criterion Manufacturing Company…