... shell first enclosed with the telescope.2. Adjust the clear focus with your naked eye.3. It can take pictures ... cell-phone is analyzed degree enough, you can adjust the focus with t he screen of the cell-phone. Main SpcificationImage ... mobile supportVideo capture resolution720x576, 640x480, 320x240, or mobile support Focus rangeManual focus from 3 meter to 300 meterMagnification Ratio8X to 18XAngle of ...