ASI2600MC Duo quantum efficiency

alfredo beltran

I've seen the website claims the ASI2600MC Duo quantum efficiency to be over 91% (around 530 nm) for the IMX571 color sensor. This values is also published by some dealers.

However, the ASI2600MC Pro, which uses the same sensor, claims over 80% quantum efficiency (also around 530 nm).

Does the ASI2600MC Duo use a different sensor with greater quantum efficiency? Or, if both cameras use the same sensor, which one is the right value for quantum efficiency?

Regards,

Alfredo