[Leica] Bat Bending Strength: The Ted Gran Effect? - JIM

[Jim Nichols]

It would seem that the electrons have a mind, or pattern, of their own, 
either by design, or by unknown forces.  It does present a puzzle, to 
which I feel there is no "simple" answer.

Jim Nichols
Tullahoma, TN USA

On 5/10/2015 1:43 PM, Robert Adler wrote:
> Just goes to show that one's elders have experience! :-D
>
> The camera was in silent mode, but I will leave it up to better minds than
> mine to figure out the real cause. Certainly made the image much more
> entertaining than without it, for me anyway.
>
> On Sun, May 10, 2015 at 11:11 AM, Frank Filippone <red735i at verizon.net>
> wrote:
>
>> You are overthinking the solution.
>>
>> A vertically moving shutter, at 1/1800 ( usually this starts around 1/125
>> of
>> a second, depending on the camera) of a second uses a SLIT to allow light
>> to
>> reach the "film".  So the bottom of the film and the top are actually
>> exposed at different times.
>>
>> Marry that fact with a fast horizontally moving subject, and you get
>> ovalized race car wheels, elongated race cars with funny angles in them,
>> and
>> baseball bats that bend.
>>
>> In the past, with horizontally moving shutters ( Film Leicas for example)
>> the effect was quite common and exciting.
>>
>> I guess the "Kids" around here have never photos from the 30's and before (
>> think Speed Graphics, which did have a vertically moving slit shutter) with
>> the same effect.
>>
>> Nothing is really new, just new to the beholder.
>>
>> Frank Filippone, showing his age.....
>> Red735i at verizon.net
>>
>> Bob's X-T1 has a dual shutter, or two shutters if you prefer, Jim.
>>
>> The e-shutter captures light scanning as an old TV set created an image -
>> which leaves time for a fast movement to trigger the effect.
>> It is the one shutter that is used when shooting in silent mode. Hence my
>> question.
>> The phenomenon may also happen when the e-shutter supersedes the mechanical
>> one i.e. for speeds above 1/4000 if I remeber well.
>>
>> The rest is chronophotography.
>>
>> Amities
>> Ph
>>
>>
>>
>> Le 10 mai 2015 à 18:18, Jim Nichols <jhnichols at lighttube.net> a écrit :
>>
>>> Ha!  No electronics involved in that one.  I was thinking of those images
>> as well.  The Leica handbooks of the 1950s, which I have somewhere, use a
>> similar image to demonstrate what can happen as the horizontally-traveling
>> slit passes across the film opening, recording a moving wheel-type image.
>> All purely mechanical.
>>> Jim Nichols
>>> Tullahoma, TN USA
>>>
>>> On 5/10/2015 11:06 AM, Philippe wrote:
>>>> It is due to the electronic shutter
>>>>
>>>> Lartigue invented it ;-)
>>>> http://www.exponaute.com/magazine/2012/10/01/art-et-automobile-un-sie
>>>> cle-dinspiration/
>>>>
>>>> I'm serious Philippe
>>>>
>>>>
>>>> Le 10 mai 2015 à 17:47, Robert Adler <rgacpa at gmail.com> a écrit :
>>>>
>>>>> Trying out the M 135 f/3.4 ASPH on a Fuji X-T1, as a potential
>>>>> longish lens solution. This visual phenom occurred (no photoshop!).
>>>>> http://gallery.leica-users.org/v/rgacpa_HI/Bat+Bending+Strength-2015
>>>>> -05-09.jpg.html
>>>>>
>>>>> Ted Grant has an image, "Martha," that seems to be somewhat similar
>>>>> to this
>>>>> effect:
>>>>> http://tedgrantphoto.com/Martha.htm
>>>>>
>>>>> I think Ted has never been able to explain why this happened: he
>>>>> knows what he was doing when he took the image, but how it happened
>> eludes him.
>>>>> Perhaps nothing to do with Ted's effect, but interesting...
>>>>>
>>>>> BTW, this is your Mother's Day photo quiz: knowing the equipment, do
>>>>> you know why this happened?
>>>>>
>>>>> Happy mother's day to all the amazing moms out there!!
>>>>>
>>>>> --
>>>>> Bob Adler
>>>>> www.robertadlerphotography.com
>>>>>
>>>>> _______________________________________________
>>>>> Leica Users Group.
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>>>>
>>>
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>
>