Why is there so much shutter noise with all 4/3s?

Started Sep 8, 2009 | Discussions thread
BJL Veteran Member • Posts: 8,987
all current DSLR sensors needs a mechanical shutter, in body for m4/3

s_grins wrote:

Once G1,GH1,E-P1 and other members of M43 standard do not have flipping mirror, the might use electronic shutter (similar to that of DSC-R1 or smaller P&S).
Why designers preferred mechanical shutter I do not know.

M4/3 still uses a mechanical focal plane shutter; apparently the DSLR style sensors still do not support good enough electronic shutter operation. Some earlier Sony interline CCD sensors supported electronic shutter, but not more recent models, so it seems that there is some performance gain got by omitting support for an electronic shutter. One reason might be that the good electronic shutters need some part of each photosite used to store the signal "away from the light" after the exposure has ended but while light is still hitting the sensor and before the photosite have been read out. That storage space is lost to the light detecting part of the photosite, reducing electron capacity and so reducing dynamic range and such.

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