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QHY268C Quantum Efficiency

QHY268C Quantum Efficiency
« on: September 26, 2020, 10:42:08 PM »
What is the Quantum Efficiency of the QHY268C camera?

Thank you
Jack Collins

Re: QHY268C Quantum Efficiency
« Reply #1 on: December 04, 2020, 05:32:54 AM »
Somehow, you don't seem to get an answer. I think i saw QE mentioned to be 80%.
The only quote (unconfirmed)i found is on a test site ([size=78%]QHY268C Review ? Cosmic Colors (cosmic-colors.com)[/size]) which says "The quantum efficiency of the sensor is not confirmed but tests suppose it is close to 90%."


I own this camera since about 2 months and its sensitivity is amazing, as far as i can tell.
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AstroBernd

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Re: QHY268C Quantum Efficiency
« Reply #2 on: December 31, 2020, 10:33:03 PM »
Hello,

      QHY268 and QHY600 has the same 3.76um pixel structure so they should have similar QE.  We only tested the QHY600M QE and it is about 87% to 89%.  Since the Bayer filter the peak QE should be a little lower than monochrom . I think it should be <87%. 

      I see some other QE curve of the color BSI sensor. Most of them is > 80%.  So I can guess the QE of QHY268C is between about 80% to 87%.   

Best regards,
Qiu Hongyun
Qiu Hongyun