Electronic shutter: advantages and disadvantages

Helen wrote:

Raist3d wrote:

Henry Richardson wrote:

Raist3d wrote:

Henry Richardson wrote:

I discovered today that Auto ISO is broken when using the electronic shutter. I am using A mode.

electronic shutter: @ 150mm - ISO 200, 1/30 f5.6

mechanical shutter: @ 150mm - ISO 2000, 1/250 f5.6

I have been using Auto ISO a lot since I got the E-M5 in 2012. Use it on the E-M5, E-M10, and E-M10II. But, now with the electronic shutter there is a bug.

This is not a bug. What I believe Olympus is trying to avoid is banding in the shot in low light conditions.

Would you mind elaborating? I thought banding was just with fluorescent, LED, etc. lighting.

Of course, the camera can't know, but I was outside late in the afternoon.

What I am saying is that Olympus is most likely trying to avoid situations where the camera would do banding due to one of those lights that has a frequency. The camera can't just guess exactly the type of light particularly in a mixed situation, so I think in general they just try to make sure banding can't ever happen by keeping the shutter speed slow in program-auto modes.

Using a slow shutter speed does not eliminate banding.

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Henry Richardson
http://www.bakubo.com

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Raist3d/Ricardo (Photographer, software dev.)- I photograph black cats in coal mines at night...
“The further a society drifts from truth the more it will hate those who speak it.” - George Orwell

Good point - they might well think that situations likely to encourage the photographer to wish to shoot silently are most likely to be indoors and thus lit with artificial light (museums, ceremonies. etc.).

This seems a more plausible explanation than the banding theory.