QHY183C
4
5. Adjust the offset. When you block the light thoroughly, you may find that the image is not
really "zero" (entirely black). Sometimes this will lower the quality of image contrast. You can
adjust the offset to make the histogram peak close to zero in order to get a better
background. You can open the histogram to confirm that.
QHY183C is a color camera, so it is very important to set the offset to a low value and make
the histogram peak close to zero. Because the color camera color balance is multiple a ratio
to the pixel value in the FPGA. The bias will be multiple too and it may affect the color
balance.
6. If you want to try 16bit image, you can switch the Colour Space to "RAW16".
7. By check the "LX" mode you can expand the exposure setting range and take long exposure
shot. 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.
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