Photo detail

Camera Maker Nikon Corporation Camera Model NIKON D90
Aperture f/5.6 Exposure Value 0 EV
Exposure Program Unknown: 0 Exposure Time 1/60 sec
Flash Flash, Auto-Mode, Return light detected Focal Length 105 mm
ISO 800 Metering Mode Pattern
Date/Time 2016:03:26 11:38:57 Resolution Unit Inch
X Resolution 240 dots per ResolutionUnit Y Resolution 240 dots per ResolutionUnit
Compression Jpeg Compression Contrast 0
Exposure Mode 0 Saturation 0
Scene Type Directly Photographed Sharpness 0
Subject Distance 0.56 Caption Side view of the worm gear teeth. This is definitely a much lower-end gear compared to the azimuth axis gear. While it's obviously not as critical as the RA axis, it's still more cheaply made, with just a straight cut at an angle.