E-M5 Rattlesnaking: Sources, Solutions, Ramifications

Started May 14, 2012 | Discussions thread
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Louis_Dobson
Louis_Dobson Forum Pro • Posts: 27,325
Re: E-M5 Rattlesnaking: Sources, Solutions, Ramifications

Timur Born wrote:

Drawbacks of "Rattlesnaking"

The main drawback of "Rattlesnaking" is audible noise with lenses that feature a fast (wide open) aperture to begin with. The movement/noise is permanently present while you aim around with the camera. AEL can help against bright targets, but when you lock AE on bright targets you will get an aperture dance when focusing (shutter half-press) on dark targets. That is because the E-M5 always uses the widest available aperture for focusing.

The latter also is the reason for possible additional shutter lag. For focusing the shutter is opened all the way up, then it goes back to its last position that was previously chosen by "Rattlesnaking" mode. And if you combine that with DOF Preview it has to do even twice as many steps.

For what it is worth I don't care about the noise and I don't see any lag. Non problem in my book.
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