Thank you, C.H.! I had tried an LCD stopwatch/calculator I had, but it
only has 1/10 second granularity, so it wasn't useful. So I used the
metronome. What I've just learned makes me think that the metronome's
flashing light is too "fuzzy" a cue. I didn't think of an online stopwatch.
I just did a few quick trials after I read your message. I started the
online stopwatch, then watched the screen either through the viewfinder
or bare-eyed, and pressed the shutter the instant I saw the 10-second
mark appear. The averages of a few shots apiece were:
EVF on "standard" frame rate (120 fps): 394 ms
EVF on "Fast" frame rate (240 fps): 266 ms
Bare-eyed: 238 ms
And the individual scores within a category were very close. So it looks
like the Fast frame rate *does* help a lot. It's late here, so I'll
confirm this with more trials soon. Supposedly fast frame rate can have
some consequences re. grainy EVF images and autofocus accuracy in dim
light, so I'll have to see how well it does in real-live shooting. But
if the numbers above hold up, the Fast frame rate could be the solution.
Evidently the metronome's flashing light was too "fuzzy" a cue.
--Peter
C.H. wrote:
> I use a simple way to check the system response time, run a online
stopwatch
> like this one:
>
> http://stopwatch.onlineclock.net/
>
> I ask my wife to press the mouse button, when I hear the click sound
I press
> the shutter release. After some testes, the results were below 90ms
with a few
> exception due to human error.
>
> This method does not see the LCD display delay (if any) but you can
also run
> the stopwatch continously, press the shutter and note the reading
before the
> shutter open and compare it with the shot result, I see something
around 1XXms.
>
> The camera under test was E-PL1 with manual focus and IS turn off.
The result
> seems not bad but I don't know if this method really works.
>
> I had bad experience shooting birds with E-PL1 and manual Zuikos, the
shutter
> delay was too long but problem was solved after I disabled the IS.
>
> C.H.Ling
> ----- Original Message -----
> From: Ken Norton
> To: Olympus Camera Discussion
> Sent: Sunday, February 16, 2014 6:43 AM
> Subject: Re: [OM] E-M5 EVF delay, again
>
>
> > But I think what you've failed to address here is that I've shown
that
> > my own reaction time is about 2/3 of the total response time.
Even with
> > the shutter shock delay time the camera's response is the smaller
part.
> > A DSLR still has to open the mirror before firing the shutter,
> > something the E-M5 doesn't have to do.
>
> That's what I was referring to when I mentioned "the entire 'system'
> reaction time." You are part of that system too. If you wait until you
> see the action to respond to it, you're already too late, no matter
> the technology.
--
_________________________________________________________________
Options: http://lists.thomasclausen.net/mailman/listinfo/olympus
Archives: http://lists.thomasclausen.net/mailman/private/olympus/
Themed Olympus Photo Exhibition: http://www.tope.nl/
|