3 ms·
What does a QE of >100% mean ? (Sony) Alpha-900 234% 3.6 892070 (Pentax) Q 101% 1.6 8429 There's a few more.
by candiodari 10y ago
What does a QE of >100% mean ?
(Sony)
Alpha-900 234% 3.6 892070
(Pentax)
Q 101% 1.6 8429
There's a few more.
- garblegarble 10y agoAccording to Wikipedia "in the event of multiple exciton generation (MEG), quantum efficiencies of greater than 100% may be achieved since the incident photons have more than twice the band gap energy and can create two or more electron-hole pairs per incident photon." https://en.wikipedia.org/wiki/Quantum_efficiency https://en.wikipedia.org/wiki/Quantum_efficiency Pretty fascinating!
- amluto 10y agoIn some sense, this is useless. A sensor that counts 50% of incoming photons twice each has more shot noise than a sensor that counts each photon once.