EOS R + 300 f2.8 MKII the only truly silent event occured @ f 2.8 !

[Canon-Chas]

I noticed this morning when shooting in silent mode EOS R + 300 f2.8 MKII the only truly silent event occured @ f 2.8 ! Apertures of f3.2 and higher give the usual little internal sound when in silent electronic shutter mode, but @ f2.8 complete silence . Seems a strange anomaly , any ideas ?

 

[Viggo]

I noticed this morning when shooting in silent mode EOS R + 300 f2.8 MKII the only truly silent event occured @ f 2.8 ! Apertures of f3.2 and higher give the usual little internal sound when in silent electronic shutter mode, but @ f2.8 complete silence . Seems a strange anomaly , any ideas ?

Probably the aperture closing and opening you hear ? 2.8 is wide open so it doesn’t move.

 

[Canon-Chas]

Probably the aperture closing and opening you hear ? 2.8 is wide open so it doesn’t move.

Thanks, I was just curious as my Sony A9 is completely silent .........

 

[Viggo]

Thanks, I was just curious as my Sony A9 is completely silent .........

Sony focuses stopped down

 

[Nelu]

Sony focuses stopped down

So for the Sony that's a bug, not a feature