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Hi Colin,
If you want the ICX 814 chip then the QHY24 is the one to go with.
The QHY23 uses the ICX 694 chip.
Physically they are both the same size chip 14.6 x 12.8mm, the 694 chip is 2838 x 2224 with 4.54 micron pixels, the 814 chip is 3468 x 2728 with 3.69 micron pixels.
Well depth may be an issue with the 814, only 15,000e vs 20,000e.
Regards
Bill
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