Optimal Viewing Distance
Determine how close you should sit to a screen before individual pixels become visible (Retina distance), and SMPTE recommendations for cinematic immersion.
Visual Acuity Distance
Closer than this, you see pixels.
SMPTE Recommended (30° FOV)
Ideal for mixed content viewing.
THX Recommended (40° FOV)
Ideal for cinematic immersion.
Assumptions: 20/20 vision can resolve 1 arcminute (1/60th of a degree). Screen aspect ratio is assumed 16:9 for width calculations.