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Fujifilm X-H2S Electronic Shutter Photographic Dynamic Range (PDR)

Started 2 months ago | Discussions thread
silentstorm Senior Member • Posts: 1,718
Vaguely remember what I read...

Alan Sh wrote:

bclaff wrote:

a_c_skinner wrote:

What is the reason? For the simple person?

Electronic Shutter (ES) read out has higher read noise than Mechanical Shutter (MS).

I must be missing something. I thought ES was just MS without the M - so the mechanical bit just isn't there.

What am I missing? Is there something I can read that explains the actuall mechanisms of ES & MS?

ALan

I vaguely recall reading something during the DSLR era, when using MS, the sensor is somewhat turnoff. The instant when the MS is about to be released, the sensor is fully on.

ES has the sensor always on. The heat induced noise and then add this noise to the readout circuit noise, the result is higher noise floor and lesser DR.

I'm not sure if this still applies to mirrorless cameras. If there's any consolation, Canon has it a lot worse in ES mode at lower ISO.

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JNR
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