[OM] Panasonic, EFC and flash (or lack therof), was: Now THIS is news!

[Chuck Norcutt]

I didn't ask Panasonic but did do a Google search and found this thread 
on DPReview. <http://www.dpreview.com/forums/post/53437183>
In a nutshell, Panasonic's implementation of Electronic First Curtain is 
a "rolling" implementation... as though the curtain is moving across the 
sensor.  It is unlike the E-M1's implementation which is apparently 
nearly instantaneous.  The net is that the E-M1's EFC shutter is fully 
open for all flash sync speeds up to 1/320.  The Panasonic EFC shutters 
are only open during the long end of the sync speeds... 1/10 to 1/25 
depending on body.
But wait.  Sounds good but doesn't explain why there is no flash at all 
with your Panasonic's EFC on... unless you haven't tried flash at those 
less useful... umm, slow speeds.
Chuck Norcutt


On 8/17/2014 3:04 PM, Moose wrote:
> On 8/15/2014 1:37 PM, Chuck Norcutt wrote:
> > "precludes flash"?  How come?
> Ask Panasonic. I could speculate - have I read some explanation? But
> that's just the way it is. Turn on EFC, and flash isn't available.
>
> Can be disconcerting. Both Panny's have little pop-up flashes, Pop it
> up, it doesn't work, and all flash related functions are dead. "OH,
> Right, I have EFC on. DOH!" First time, it took me ages to realize that.
>
> Not Flashy Moose
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