That's an interesting statement, considering the fact that it's totally impossible.
The focal-plane shutter opening is what causes the vibrations (unless your hands are shaking).
So how can you delay its opening based on vibration that has not yet occurred?
- Leigh
I don't know Leigh I don't design them just use them. You can read more about it in the Phase One marketing literature. It may be vibrations due to the mirror. Phase made quite a statement about the built in "edit" accelerometer sensor to allow the camera not to fire or fire again until all vibrations are gone.
However I also don't know anything on the timing with a LS lens. With the DF+ both shutters fire not sure on the timing.
Anything would be an improvement over the DF+ in regards to mirror shake.
Here is more detail pulled from Brian Hirschfeld's blog that covers the feature.
"The PhaseOne XF also features an accelerometer and 6-axis Gyro. Which I understand will become powerful tools as new features are added to this body through firmware upgrades. At release, an interesting feature resulting from these components is the “Seismographic mode”. This mode, uses mirror lock up (MLU) + a timer, with the aforementioned sensors to reduce vibrations when taking long exposure images. It does this by monitoring vibrations until they are reduced and then fires the camera shutter at this optimal moment. I believe this feature may only work with Leaf Shutter lenses, but I will update when this has been confirmed for me. Either way, really cool feature that takes advantage of these fancy new components, it will be exciting to see what else they will be able to do in the future (maybe tracking motion, so that a image-stabalization like de-blur feature can be used in C1?, after all once you have the movement data, its just math SEE BELOW).
Update: Seismographic mode can be used with all lenses, however it will be most effective with leaf shutter lenses, given the vibration reduction inherent in not using the focal plane shutter.
Also, we should be very excited about the possibilities of the accelerometer, at the time of my initial writing I was not aware of this, however a US Patent #US6747690 B2 entitled Digital camera with integrated accelerometers filed by PhaseOne a number of years ago suggests in its abstract that “Data relating to static and dynamic accelerations are stored with recorded image data for further processing, such as for correcting image data for roll, pitch and vibrations … Data may also be used on-the-fly for smear suppression caused by vibrations.” There are other PhaseOne patents that deal with the accelerometer, but this one would suggest that what I alluded to above could very much be on the menu in the not too distant future, and would certainly be a modern feature!"
Paul