Another data point for consideration. (step=half press, stop=full press).
The shutter-release "plunge" on my cameras have varied quite a bit and
this has resulted in a significant difference in the ability to take
sharp pictures. Examples include:
1. Olympus IS-3. The shutter-release has a distinct mechanical "step"
resulting in the inability to have a smooth plunge. Sharp pictures
less likely.
2. Olympus OM bodies. Slight variance between models, but the
shutter-release is a smooth, somewhat stepless motion with the actual
release point happening past the mechanical step. The step is present,
but pretty gentle. Sharp pictures possible (limited by aperture
mechanism).
3. Olympus E-1. The mechanical step is soft and like the OM system,
the actual shutter-release point is somewhere between the step and the
stop. No need to press all the way to the stop point. Sharp pictures
VERY likely.
4. Minolta A1. Very similar to the E-1, but with the shutter-release
point somewhere between step and stop, mostly at the stop. However,
the step is a little stiffer. Sharp pictures likely, but not quite as
good as the E-1.
5. Panasonic DMC-L1. The Shutter-release is even more rigid than the
IS-3. The step is very stiff. The point where the actual release point
occurs is pretty much unknown because in order to clear the step,
significant pressure is required and this results in increased finger
speed as the shutter-release plunges to the stop. Sharp pictures are a
challenge.
6. Motor drives and winders for OM system. Stepless. Smooth plunge
with actual release point part way down. No need to press all the way
to the stop point. Sharp pictures VERY likely and with the increased
mass, the impact of the aperture mechanism is reduced.
--
Ken Norton
ken@xxxxxxxxxxx
http://www.zone-10.com
--
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