Kenko Sky Memo Instructions
Hutech Corporation © 2000
6
Troubleshooting
Below are some common problems encountered by photographers and some suggestions for troubleshooting a
setup:
Backlash in RA This is not problem. A little
backlash is necessary for proper
gear operation.
Kenko tripod adjustment knob
keeps turning without moving
position
l The setscrew holding the
knob has loosened.
l Screw the knob back onto the
adjustment shaft (it is a left-
handed thread) until it
reaches the end of travel and
tighten the setscrew
Can’t see reticle pattern well l Polar scope is not focused.
l Illumination is too low
l Adjust focusing by turning the
eyepiece
l Adjust illumination by turning
the VOL control
Stars are trailed l Clamp(s) not locked firmly
l Polar alignment is off
l Equipment flexure
l Atmospheric refraction
l Battery power drops too low
l Camera or lens moved
l Tighten clamps and recheck
before each exposure
l Check polar alignment before
each shot
l Watch balance when using
longer and heavier telephoto
lenses (use lens bracket).
l Use a guide scope
l Check to insure that the
motor is working properly,
use fresh batteries, and keep
batteries warm on cold nights
l Check equipment position
before each shot to insure
tracker clearance. The arm
moves 15 degrees per hour.
Image is out of focus l Focus ring moves during
exposure
l Film move moves against
pressure plate in high
temperature and humidity
l Use tape to keep the camera
focus ring in position.
l Shorten exposure times
l Change to a different film
l Use dry air purge for the
camera
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