Instance Property

lensAperture

The size of the lens diaphragm.

Declaration

@property(nonatomic, readonly) float lensAperture;

Discussion

The value of this property is a float indicating the size (the f number) of the lens diaphragm.

This value does not change.

See Also

Inspecting Device Characteristics

uniqueID

An ID unique to the model of device corresponding to the receiver.

modelID

The model ID of the device.

manufacturer

A human-readable string describing the manufacturer of the device.

localizedName

A localized, human-readable name for the receiver.

connected

Indicates whether the device is currently connected.

virtualDevice

A Boolean value that indicates whether the device is a virtual device consisting of two or more physical devices.

deviceType

The general type of the device, such as a built-in microphone or wide-angle camera.

constituentDevices

An array of physical devices comprising a virtual device.

position

Indicates the physical position of the device hardware on the system.

- hasMediaType:

Returns a Boolean value that indicates whether the device provides media with a given type.

- supportsAVCaptureSessionPreset:

Returns a Boolean value that indicates whether the receiver can be used in a capture session configured with the given preset.