Tele Vue NP-101is Package

Includes Telescope, Mount, and Accessories NP-101is Refractor Hard Case for NP-101is  NP-101is Accessory kit with 2" Diagonal, 1.25" adapter, 4" Clamshell, and 18.2mm DeLite Eyepiece Gibraltar HD4 Mount and Tripod   Description Televue was determined to make the NP series optically, mechanically, and functionally as perfect as possible for imaging up to 50mm diagonal chips without penalty to its near ideal visual operation. How? By applying the developments created for the Tele Vue-60is to the new NP-101is and NP-127is and then going beyond. The NP101 (540mm, f/5.4, 4") and NP127 (660mm, f/5.2, 5") maintain their optical specifications yet with redesigned 4-element optical systems. Larger rear lens groups absolutely minimize vignetting in formats up to 50mm diagonal. For these large chips an optional field corrector was developed so the corners of the newly brightened edges would virtually be as perfect as the center of the field. Next, to take full advantage of the larger lenses, t