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

[Robert Adler]

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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> >>
> >
> >
> > _______________________________________________
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>
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>
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-- 
Bob Adler
www.robertadlerphotography.com