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How can I set Aperture and how it will effect in image? I have managed ISO and shutter speed.but I am not able to set Aperture value.

Rohan Mali
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The Aperture is a fixed mechanical size and cannot be changed - neither through code nor device settings.

You can get the aperture (the size of the lens diaphragm) via the AVCaptureDevice .lensAperture property, but you cannot change it.

Apple Docs: https://developer.apple.com/documentation/avfoundation/avcapturedevice/1624589-lensaperture

DonMag
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  • Hi Thanks for the reply.You have any written document by apple for it?If it is there Please Share it. – Rohan Mali Oct 03 '18 at 11:14
  • While I have not been able to find any specific statement on Apple's site regarding the (mechanical) non-adjustable Aperture, there are plenty of site that mention it. I added a link in my answer to Apple Docs where it states: ***This value does not change.*** – DonMag Oct 03 '18 at 12:13