Archived posting to the Leica Users Group, 2010/02/02

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Subject: [Leica] EYE BLINK TIME?
From: Frank.Dernie at btinternet.com (Frank Dernie)
Date: Tue, 2 Feb 2010 09:22:24 +0000
References: <23502690.1264904017335.JavaMail.root@wamui-junio.atl.sa.earthlink.net> <B3109AE1-1427-422F-A6D4-D1A56438DE74@gmail.com> <20100201142217.GB30022@ssx-book.125px.com> <DAF6F897-735D-4101-873E-40949532832E@gmail.com> <69471C671C6F4ECCA2923747BC96480C@syneticfeba505> <EF459506-1051-4945-A84E-1789BB2EA06A@gmail.com>

When the electronics means became available to do so an automated jump start 
measurement system was introduced in Grand Prix racing. I do not know 
whether the FIA used such a delay, but I do know that several drivers 
probably had been jumping the start for their whole career! These guys kept 
getting a penalty (drive through the pits, the start is not aborted for 
everyone else) and studying the data showed a clear infringement in every 
case. I saw the data rather a lot since one of our drivers was one of the 
habitual start jumpers. He absolutely refused to accept that it wasn't his 
better reaction time for several races...
The FIA guys showed me all the data showing considerable differences between 
the reaction times of the drivers, though I do not remember precise values. 
It is crucial to get the starts right so practicing it is very important...
Frank

On 1 Feb, 2010, at 17:02, Steve Barbour wrote:

> 
> On Feb 1, 2010, at 8:58 AM, <tedgrant at shaw.ca> wrote:
> 
>> OK Gentlemen here is the official international ruling which generally 
>> applies to the super high end events. Read on:
>> 
>>>> In track and field sprints, the sport's governing body, the IAAF, has a 
>>>> rule that if the athlete moves within 0.10 seconds after the gun has 
>>>> fired the athlete has false started. [2] This figure is based on tests 
>>>> that show the human brain cannot hear and process the information from 
>>>> the start sound in under 0.10 seconds.[3] This rule is only applied at 
>>>> high-level meets where fully automated motion sensor devices are built 
>>>> into the starting blocks that are tied via computer with the starter's 
>>>> gun. In the vast majority of lower-level meets, false starts are 
>>>> determined visually by the officials.<<<<<<<<<
>> 
>> And like I said, " I've never seen nor heard of this before."  But her 
>> you have it!
> 
> so they are really trying to prevent anticipation, but what if a super 
> high end athlete (by definition an outlier) can react faster?
> 
> soon they will punish high end photographers who anticipate,
> 
> Steve
>> 
>> ted
>> ===========================================
>> ----- Original Message ----- From: "Steve Barbour" <steve.barbour at 
>> gmail.com>
>> To: "Leica Users Group" <lug at leica-users.org>
>> Sent: Monday, February 01, 2010 7:46 AM
>> Subject: Re: [Leica] EYE BLINK TIME?
>> 
>> 
>>> 
>>> On Feb 1, 2010, at 6:22 AM, Tim Gray wrote:
>>> 
>>>> On Sat 30, Jan'10 at  6:19 PM -0800, Steve Barbour wrote:
>>>>>> IIRC a Canadian sprinter was DQ'd for repeatedly reacting more 
>>>>>> quickly that was considered possible.
>>>>> 
>>>>> Whatever happened to the runner's "anticipation of the gun"  ?
>>>> 
>>>> It's ok as long as you don't anticipate it too perfect.  :D
>>> 
>>> 
>>> hmmm...
>>> 
>>> 
>>> they can call a false start even if the runner starts after the gun  ??
>>> 
>>> 
>>> Steve
>>> 
>>> 
>>>> 
>>>> _______________________________________________
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>>> 
>>> 
>>> _______________________________________________
>>> Leica Users Group.
>>> See http://leica-users.org/mailman/listinfo/lug for more information
>> 
>> 
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In reply to: Message from wildlightphoto at earthlink.net (Doug Herr) ([Leica] EYE BLINK TIME?)
Message from steve.barbour at gmail.com (Steve Barbour) ([Leica] EYE BLINK TIME?)
Message from tgray at 125px.com (Tim Gray) ([Leica] EYE BLINK TIME?)
Message from steve.barbour at gmail.com (Steve Barbour) ([Leica] EYE BLINK TIME?)
Message from tedgrant at shaw.ca (tedgrant at shaw.ca) ([Leica] EYE BLINK TIME?)
Message from steve.barbour at gmail.com (Steve Barbour) ([Leica] EYE BLINK TIME?)