And remember that auditory response is faster than visual response.
Nevertheless you're still as fast as a college age kid. Good show!!
Chuck Norcutt
On 2/16/2014 9:13 AM, C.H.Ling wrote:
> Sorry, I just found the counter started to count after mouse release. We did
> some testes again with release click sound and it came to a more reasonable
> 150 and 170ms.
>
> C.H.Ling
>
> ----- Original Message -----
> From: "C.H.Ling" <ch_photo@xxxxxxxxxxxxx>
>
>
>> I think anyone can perform this simple test, if there is any problem it is
>> computer delay. The only thing I did was listen to the mouse click and
>> press
>> shutter button, I don't know when my wife is going to press the button.
>>
>> At the mean time I can't see any delay with the counter onscreen when
>> pressing the mouse button, may be my eyes are too slow?
>>
>> I just also tried another counter:
>>
>> http://sourceforge.net/projects/countdowntimer/
>>
>> This time I got 80ms for the first test and 50ms for the 2nd test.
>>
>> BTW, the test should be performed with high shutter speed, I use 1/500s at
>> ISO3200.
>>
>> C.H.Ling
>>
>> ----- Original Message -----
>> From: Chuck Norcutt
>> To: Olympus Camera Discussion
>> Sent: Sunday, February 16, 2014 9:06 PM
>> Subject: Re: [OM] E-M5 EVF delay, again
>>
>>
>> I don't know what it is but suspect there's something wrong with the way
>> you're testing because your results are far faster than college age
>> students and Olympic athletes. Also note that auditory response times
>> are faster than visual response times.
>>
>> From this Wiki article <http://en.wikipedia.org/wiki/Mental_chronometry>
>>
>> "Simple reaction time is the motion required for an observer to respond
>> to the presence of a stimulus. For example, a subject might be asked to
>> press a button as soon as a light or sound appears. Mean RT for
>> college-age individuals is about 160 milliseconds to detect an auditory
>> stimulus, and approximately 190 milliseconds to detect visual
>> stimulus.[2][3] The mean reaction times for sprinters at the Beijing
>> Olympics were 166 ms for males and 189 ms for females, but in one out of
>> 1,000 starts they can achieve 109 ms and 121 ms, respectively."
>>
>> Chuck Norcutt
>>
>>
>> On 2/16/2014 12:54 AM, C.H.Ling 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.
>>>
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>
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