QHYCCD QHY5 - Manual (Page 5)

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SERVICE TEMPERATURE AND HUMIDITY
OF CAMERA
Service Temperature of this camera is from -
20C/-4F to +30C/86F.
Relative Humidity amount is from 0% to 90%.
QHY5 CMOS CHIP READ-OUT MODE
QHY5’s CMOS chip is single channel and
progressive. The camera supports reading out
non-compressed video.
CLEAN THE SURFACE OF CMOS CHIP
If dust coats the surface of the CMOS-it
will impact the your images and possible
create “dust donuts” and other artifacts.
If there is only a small amount of dust, we
suggest just using flat fields calibration
to remove them.
clean the dust off of the surface of CMOS
with a manual air pump. If there is dirt
that doesn’t come off with the air pump, you
can use lens paper or a commercially available
SLR camera cleaning kit. Here is the correct
procedure to follow with the lens paper:
1. Wash your hands with soap.
2. Take a piece of lens paper, and fold it
once or twice (do not fold too many times as
the lens paper will get very sharp and the
edges may scratch the CMOS glass surface)
3. Blow at CMOS in a breath and use lens paper
to clean the CMOS surface. Make sure to
maintain an appropriate pressure for CMOS with
your hand.
4. Finish cleaning and reinstall the front
cover of CMOS. If there is higher relative
humidity in your environment- it is necessary
to dry the inside of the CMOS sealed chamber.
Cleaning tips