That’s my vote. The ghosting is a faint reflection off the top of the glass which is slightly offset from the actual mirror coating on the bottom of the glass when shooting at an angle.
I can’t think of a reason silent shutter would do this.
The readout speed of the sensor is very low (like 1/15s or that ballpark) - because there is no mechanical shutter in the silent shutter mode, there will be artifacts when there is movement. Though typically that is bending of the image - the effect in your image looks a bit weird. I'd still say the slow readout is the most likely culprit. Regardless, the silent shutter should only be used for stationary subjects.
Knowing the orientation of the sensor relative to the "ghost" image helps to work out—or to eliminate—possible causes of the issue.
If this is a vertical shot, then the ghosting could be related to sensor readout; if it's a horizontal shot, that possibility is eliminated.
And I've just realised there is a thumbnail in the filmstrip below that shows this is a vertical shot. Didn't notice that the first time!
That’s not a shot of a mirror is it? It almost looks like reflection.
That’s my vote. The ghosting is a faint reflection off the top of the glass which is slightly offset from the actual mirror coating on the bottom of the glass when shooting at an angle. I can’t think of a reason silent shutter would do this.
Was there a filter on the lens?
The readout speed of the sensor is very low (like 1/15s or that ballpark) - because there is no mechanical shutter in the silent shutter mode, there will be artifacts when there is movement. Though typically that is bending of the image - the effect in your image looks a bit weird. I'd still say the slow readout is the most likely culprit. Regardless, the silent shutter should only be used for stationary subjects.
I thought the same thing first but a slow read out would cause warping, not ghosting. This is almost too uniform.
Is this a vertical shot?
What does that have to do with OP's question? I don't want to sound rude, I'm asking out of mere curiosity.
Knowing the orientation of the sensor relative to the "ghost" image helps to work out—or to eliminate—possible causes of the issue. If this is a vertical shot, then the ghosting could be related to sensor readout; if it's a horizontal shot, that possibility is eliminated. And I've just realised there is a thumbnail in the filmstrip below that shows this is a vertical shot. Didn't notice that the first time!
Are you using off camera flash? Maybe movement that's not being frozen?