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Electronic shutter: advantages and disadvantages

Started Sep 6, 2015 | Discussions thread
(unknown member) Forum Pro • Posts: 47,805
Re: Auto ISO broken with electronic shutter

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.

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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

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