Resolution to 1.14 arc sec was measured. Uniform diffraction pattern. Color correction exceeds achromats. The completed scope was star tested under fair sky conditions. The telescope yields sharp edge to edge images across a 2.5 degree field of view.
Lunar edge confirms a well color corrected system, even at very high magnifications.
Overall contrast is excellent for extended objects. This system will be an excellent photographic lens as well as a CCD imaging system. Since this telescope has a short main tube design, it is much more flexible as to accessories and the use of focal reduction systems as compared to the other refractors available. This telescope will focus with all 1.25 and 2 inch eyepieces, with or without the use of a star diagonal. There is a locking screw which will hold focus as well, but a bit more tension would be desired for special applications work involving heavier accessories.