The telescope's focal length, meters

Namespace: ASCOM.DeviceInterface
Assembly: ASCOM.DeviceInterfaces (in ASCOM.DeviceInterfaces.dll) Version: 6.0.0.0 (6.1.1.2619)

Syntax

C#
double FocalLength { get; }
Visual Basic
ReadOnly Property FocalLength As Double
	Get
Visual C++
property double FocalLength {
	double get ();
}

Remarks

This property may be used by clients to calculate telescope field of view and plate scale when combined with detector pixel size and geometry.

This is only available for telescope InterfaceVersions 2 and 3

Exceptions

ExceptionCondition
ASCOM..::..PropertyNotImplementedExceptionIf the property is not implemented

See Also