someone_else
5-Aug-2020, 03:48
I recently got an Ernemann Spiegelreflex reflex camera which has a focal plane shutter. And I am not really sure how to set and determine the shutter speeds (since my assumption is that after all this time the speeds would probably not be accurate, even if I did know what they are supposed to be, which I don't).
As far as I can tell the process is:
- You set the shutter lever (right side of the camera, middle of the DRP control panel) into ready mode. This flips the mirror up.
- You can then flip a lever (which is underneath the first one) into either M or Z (Time mode). For normal use I set it to M.
- You then cock the shutter by turning one of the knobs at the top (you can use either) clockwise until the curtains are in their ready position (i.e. the knob won't turn any more)
- the shutter is now ready to fire, but you can configure the speed by using the knob at the bottom to tighten the spring. There are 17 possible turns, and the more you wind the faster the shutter curtains will travel when the shutter is released.
- Finally you use the shutter release lever on the left of the camera to fire it.
This works, but there are two main issues:
1. Even at the maximum spring tightening I am getting something like 1/180th of a second, and I am sure that this shutter should go at least to 1/1000. But it could just need cleaning and lubricating.
2. There is that number indicator on the left of the camera which doesn't change while performing the operations above. I am honestly not sure if it is coupled or just a static indicator, though (as I couldn't find any instructions on how to use it). My guess, though, is that it is meant to work somehow, and that I am missing a step.
As far as I can tell the opening between the first and second courtain stays always the same while following the steps above. And I would expect that it would change to allow for slower speeds. But I haven't figured out how to change it.
Rotating the knob on the top left of the DRP panel counter-clockwise allows the two curtains to open up, but this seems to be only for bypassing the focal plane shutter, because when arming the shutter the Gap is then always reset.
Does anyone have any experience with this or similar shutters?
As far as I can tell the process is:
- You set the shutter lever (right side of the camera, middle of the DRP control panel) into ready mode. This flips the mirror up.
- You can then flip a lever (which is underneath the first one) into either M or Z (Time mode). For normal use I set it to M.
- You then cock the shutter by turning one of the knobs at the top (you can use either) clockwise until the curtains are in their ready position (i.e. the knob won't turn any more)
- the shutter is now ready to fire, but you can configure the speed by using the knob at the bottom to tighten the spring. There are 17 possible turns, and the more you wind the faster the shutter curtains will travel when the shutter is released.
- Finally you use the shutter release lever on the left of the camera to fire it.
This works, but there are two main issues:
1. Even at the maximum spring tightening I am getting something like 1/180th of a second, and I am sure that this shutter should go at least to 1/1000. But it could just need cleaning and lubricating.
2. There is that number indicator on the left of the camera which doesn't change while performing the operations above. I am honestly not sure if it is coupled or just a static indicator, though (as I couldn't find any instructions on how to use it). My guess, though, is that it is meant to work somehow, and that I am missing a step.
As far as I can tell the opening between the first and second courtain stays always the same while following the steps above. And I would expect that it would change to allow for slower speeds. But I haven't figured out how to change it.
Rotating the knob on the top left of the DRP panel counter-clockwise allows the two curtains to open up, but this seems to be only for bypassing the focal plane shutter, because when arming the shutter the Gap is then always reset.
Does anyone have any experience with this or similar shutters?