Pixel Field of View
Angular field of view per pixel (IFOV) from pixel size, binning and focal length, with the Nyquist frequency and the full field across the sensor.
IFOV = 2·atan(b·p / 2f) ≈ b·p / f
p = pixel pitch, b = binning, f = focal length of a lens focused at infinity
Results
Pixel IFOV26.81″
Pixel IFOV130.0 µrad
Effective pixel6.5 µm
Sensor Nyquist 1/(2bp)76.9 lp/mm
Angular Nyquist 1/(2·IFOV)3.85 cycles/mrad
Full field across the sensor15.17°
Pixel IFOV vs focal length
Model and references
Exact. The equations are exact within the stated assumptions, or are a standard's tabulated values. The results are as good as the inputs. About the tiers
Lens focused at infinity, on-axis pixel: IFOV = 2·atan(b·p/2f). Off-axis pixels subtend slightly less, and distortion is ignored.
- Holst G. C. (2017). Electro-Optical Imaging System Performance, 6th ed. SPIE Press. Detector angular subtense d/f and the Nyquist frequency 1/(2d). doi:10.1117/3.2588947