You are actually viewing through an LCD (liquid crystal display).
The spots you see are on the surface of the LCD, which in turn is magnified 14X. The LCDs are built in a cleanroom; however tiny unseen flaws (to the naked eye) do occur.
Also during the installation into the monocular dust will sometimes settle on the surface and many times the dust than cannot be blown off the LCD.
Bozily is working feverishly on the quality of the LCD, but that technology is not mature enough to accommodate our requirements.
The spots in no way affect the ranging performance of the device. We realize that our customers have come to expect immaculate optics from Bozily and be assured that we are working toward that goal.