Firefly DE550/551 User Manual Version: 3.3
Recommended holding position:
It is suggested to hold the otoscope, transparent cover forward, with the thumb held on
the equipment. This holding position offers relative stability and allows lens control. The index finger is
still free to rotate and adjust the focus wheel (as shown).
Brightness Adjustment:
On left rear side of the otoscope, a knob allows the
user to control the brightness of the LEDs:
Backward Turn: Decrease Brightness
Forward Turn: Increase Brightness
Using the Image Capture Control:
Press and release the Capture button to capture image
frames. The system will generate a shutter sound from
the PC speaker as confirmation.
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