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import type { CartesianCoordinate } from './common';
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type FocalRatio = `f/${number}`;
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/**
 *
 * getFocalRatio()
 *
 * @param apertureWidth - the aperture of the optics
 * @param focalLength - the focal length of the optics
 * @returns the focal ratio as a string formatted in the standard focal ratio, e.g., f/x.
 */
export declare function getFocalRatio(apertureWidth: number, focalLength: number): FocalRatio;
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/**
 *
 * getFieldOfView()
 *
 * @param focalLength - the focal length of the optics (in meters)
 * @param pixelSize - the pixel size of the camera (in meters)
 * @param resolution - the resolution of the camera (in pixels)
 * @param binning - the binning of the camera (in pixels)
 * @returns the field of view (FOV) of the camera (in degrees)
 */
export declare function getFieldOfView(focalLength: number, pixelSize: number, resolution: Omit<CartesianCoordinate, 'z'>): Omit<CartesianCoordinate, 'z'>;
export {};
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