Lens, Sensor and Field of View

These calculators use the sensor size, focal length and aperture. Find the depth of field and hyperfocal distance, the field and angle of view for a lens, a sensor’s crop factor, two sensors side by side, and the true field of view of a telescope and eyepiece.

Tools in this group

• Angle of View Calculator — Turn a focal length into an angle of view, or pick the angle you need and get the lens focal length for your sensor.
• Crop Factor Calculator — Choose a sensor or enter its width and height to get the crop factor and what your lens is equivalent to on full frame.
• Depth of Field Calculator — Choose your sensor, focal length, aperture and subject distance to see how much of the scene is acceptably sharp.
• Field of View Calculator — Pick a sensor and a lens to see the horizontal, vertical and diagonal angle and the scene size at your subject distance.
• Field of View Telescope Calculator — Enter the telescope and eyepiece details to get magnification, true field of view and exit pupil, or the field a camera sensor covers.
• Hyperfocal Distance Calculator — Enter your sensor, focal length and aperture to get the hyperfocal distance and the nearest sharp point when you focus on it.
• Sensor Size Comparison — Pick two sensors to see them drawn to scale with their area ratio, stops of light and the lens that matches the view.