Reason for slow flash sync speed

Started Mar 13, 2014 | Discussions thread
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dotborg Veteran Member • Posts: 8,250
Re: Reason for slow flash sync speed

le_alain wrote:

dotborg wrote:

The A7 has 1/250s sync because it has electronic first curtain.

No, even if you use the mechanical first curtains.

Let me put it a different way: Because the A7r lacks electronic first curtain capability, Sony had to slow down the shutter movement in order to minimize the vibration. This lowered the sync speed from 1/250s to 1/160s.

Hope that makes it more clear.

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