As discovered by CanonNews, this is an interesting patent application. Shutter shock is a condition that mirrorless cameras are prone to have if they have a mechanical shutter, especially if they also have IBIS.
Canon in this patent application talks about a floating shutter mechanism that would reduce or even eliminate shutter shock.
A prior patent application may have worked;
[In patent application] an image pickup device that holds a shutter in a floating state so as to be movable only in the traveling direction of the shutter blade by using a spring, and absorbs vibration due to the traveling of the shutter blade.
However, Canon found that approach to be inaccurate and this in this case describes a mechanism that uses electromagnets to move the shutter instead which reduces the amount of vibration caused by the assembly. (Thanks for the clarification – I'll blame it on 60 hours' worth of jetlag still).
Granted using an electronic shutter or global shutter can also completely remove shutter shock, but this may be an excellent interim solution.
Couple of observations:
- Enlarging the image on the patent appear to show 14 lens contacts (RF mount)
- There are two different bodies used in the images, one looking a lot like an R5, and another looking quite small, with a disproportionately large mount for its size. That second, smaller body doesn't show the contacts to show what kind of mount it is. Canon has in the past dropped unintentional hints with patent illustrations, and other times, they appear just to be using existing art to illustrate a new idea that winds up appearing in a different form.
I wonder if this would be the weak point for shutter life, using a flexible material. Or, alternately, perhaps the lack of shock could extend the life of shutters.
Thanks for sharing @canonnews
Will be interesting what shows up in the future.
The R5's eShutter is great for outdoor usage (albeit with reduced bit depth) but not really usable under indoor lighting.
Suffering from jetlag is my excuse at the moment :)
But .. they are expensive. A shutter that minimizes shutter shock and a regular sensor may be a cheaper option for say, a 75MP landscape camera.
cayenne
So the phenomenon isn’t just to do with mirrorless, but i haven’t heard of specifically IBIS making it worse.