Magnification of a Lens Calculator
How do I convert lens focal length (mm) to x-times optical zoom? - Photography Stack Exchange
Panasonic Professional PTZ Camera Field of View Calculator | Panasonic North America - United States
Effective Focal Length Calculator - Landscape Photography | Real Estate Photography
Lens Magnification Calculator | Magnification Equation Calculator
Ball Lens Calculator | Edmund Optics
Lenscalculator | Focal Lenght | FOV | Sensor size
Calculators – Lensation GmbH
Lens focal length calculator
Imaging System Parameter Calculator | Edmund Optics
How does optical zoom work? - Quora
Focal Length Calculator
How do “point and shoot” cameras get up to 40X optical zoom at a reasonable price while a DSLR or mirrorless “telephoto” lenses does not get close to that magnification? - Quora
With the Field of View Calculator you calculate the viewing range - Avonic
OPTICAL CALCULATOR
Camera Lens Focal Length Calculator | Lens EFL Calculator
Camera Field of View Calculator (FoV)
Projection Calculator Pro - Projector to Screen Distance
Spot size calculator | Workswell
Distance Calculator - CAVE-TEK
Magnification of a Lens Calculator
Camera Depth of Field Calculator + Hyperfocal Distance
