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

[Philippe]

contrary to mechanical shutters where the slit is either vertical or horizontal, e-shutters act like BOTH vertical and horizontal curtains at the same time - they record points, not lines
they scan one line after the other 
at the next line, ultra fast objects have actually moved one block further

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ChronophotograPhilippe




> 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