shutter shock

Started Nov 12, 2012 | Discussions thread
Anders W Forum Pro • Posts: 21,466
Re: Have a listen......

Skip wrote:

Guy Parsons wrote:

For a total thrill, hold your ear hard against the camera body and fire the shutter. Sounds = vibration and my E-PL1 sounds like a jet plane crash into a hardware store.

Regards....... Guy

And here I thought one of the big benefits of going mirrorless was to eliminate those big things that slapped around and caused vibrations and spoiled pictures to the point that mirror lock-up options were needed on the dslr's.

On a typical dslr was the mirror slap masking shutter slap, or do the mft's use some sort of inferior shutter design?

Not inferior but different. An MFT shutter does double duty. Unlike the shutter on a DSLR using its OVF, it is open (for live view), when the shutter button is pressed. It then first has to close (to reset the sensor prior to exposure), then open (for exposure), then close again (for readout), and finally open again (to continue live view).

The first part of this sequence (shutter closing before exposure) is somewhat analogous to the mirror slap on an SLR and is responsible for at least part of the shutter shock (perhaps the most significant part). On Oly (but not Pany) bodies, there is something analogous to mirror lock-up known as the anti-shock setting. This setting introduces a delay between the time the shutter closes prior to exposure and its opening again for exposure, thereby eliminating the shock caused by the first stage of shutter action.

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