QHYCCD QHY183C, Руководство пользователя

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QHY183C
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3.7 Some computer's front USB port is not so good for high speed transfer (The reason is it
connected to mainboard by a cable and which has no good signal integrity). If you found the
camera always hang on front USB port. You can try the USB port on backside of the computer
(which is connected to chipset directly on the mainboard).
4. What's the interface to telescope? How to use C/CS lens on QHY183C?
QHY183C supports C lens but currently doesn't support CS lens. You need order the optional C
adapter for QHY183C. With this adapter the back focal is 17.0mm and you can use the C-mount
lens with it. Since this sensor is one inch, you need to choose the lens which can cover the one
inch image circle.
5. How to clean the CMOS sensor and the optic windows of the camera?
If you found there is dust on the CMOS sensor. You can screw off the front part of the QHY183C.
The QHY183C's CMOS sensor has the AR coating so you need to be careful to clean it. You can use
the clean kit for DSLR sensor to do it.
The optic window is the IR cut coating or AR coating. So you need to be careful when cleaning it.
You can also use the DSLR clean tools or the lens paper. Don't use strong force to clean it. The
coating is not so hard and it is easy to get scratch when you use strong force on it.
6. How is the anti-amplifier function in QHY183C?
QHY183C camera has the anti-amp light control circuit and it can reduce the amplifier glow
significantly. Note that it's impossible to reduce the glow in the corner thoroughly, and it's normal
to see a very small amount of glow in the corner when you do long exposure.
This is a demo picture for the QHY183C glow in 60sec exposure and high gain. Dark frame
calibration can remove it completely.