FOV & Focal Length Visualizer
Larger equivalent aperture → more light → cleaner low-light quality
4mm500mm
Effective Diagonal
43.27mm
Crop Factor
1.00x
35mm Equivalent
50.0mm
Diagonal FOV
46.8°
Horizontal FOV
39.6°
Vertical FOV
27.0°
Viewfinder
39.6°Field of View: 39.6°
Core Formula
FOV = 2 × arctan(d / (2f))
35mm Equiv. = f × (43.27 / d_diag)