MRC:
The film/area size that the lens transposes relative to its field of view covered.BLDD
Field View Coverage:
Fov - 0 in. Eye distance, 7.2 degrees targeting circle; 6.5 in. Eye distance, 3.6 degrees targeting circle; 13 in. Eye distance, 1.8 degrees targeting circle
MRC:
Those unusual or unique characteristics or qualities of an item not covered in the other requirements and which are determined to be essential for identification.FEAT
Special Features:
Database includes 9 planets and the moon, 6000 stars, 1500 double and variable stars; 88 constellations; 110 deep space objects and 200 audio descriptions of celestial objects; 4-way control navigation menu; brightness and volume adjustment; 3 satellite/2d fix for trialeration; 12-channel gps; lcd with red led backlit display; 50mw output audio power