Rumours, rumours, rumours are they valid??

[Winedarksea]

We have not yet seen how this camera operates. It is more than possible it contains the reverse pellicle mirror system - a simple enough 60/40 semisilvered mirror, which allows plenty of light through to the sensor for live composition and viewing, or video, while diverting a fair amount to a phase detect AF array. Sony's mockups which appeared to have just the sensor visible may have omitted a mirror system, in order to sidetrack the opposition.

Such a mirror could be a fixed pellicle, which would also seal the sensor against dust, or a moving one to allow full light transmission to the sensor if desired.

David

Would it be possible, so you think, David, to electronically turn the reflectivity of a "pellicle" on and off, without moving it, and thus use 100% of the light for both main sensor and af sensor?

[David Kilpatrick]

If that was possible - which it is in another application, digital projectors - they would make shutters out of such a system. I think the reflective angle can be changed, but not the transparent aspect.

David

[OneGuyKs]

The camera is too thin and small for pellicle mirror and AF sensor. That would probably be in A7xx size camera but not these models.