Optical Core • 8-Blade Iris
Real-Time Optical Telemetry
STATUS: ACTIVE LIVE
Computed Depth of Field
34.5
cm
Near: 1.04 m • Far: 1.38 m
Physical Iris Diameter
24.0
mm
Clear optical pupil opening
Diffraction Limit Status
Optimal Sharpness
Airy disk < pixel pitch limit
Light Gathering Index
1.85 EV
+1.85 EV over standard f/2.8 lens
Depth of Field Focus Plane
Bokeh Disk: 18.2 µm
0.5 m (Foreground Blur)
Subject (1.2 m)
3.0 m+ (Background Bokeh)
Mashable Hardware Intelligence: The iPhone 18 Pro overhaul introduces Apple's first mechanical variable aperture system on the primary wide sensor. Unlike computational portrait cutouts, a physical mechanical iris prevents diffraction softening in bright daylight at f/4.0 while preserving organic background separation and ultra-shallow falloff at f/1.4–f/2.0.
iPhone 18 Pro Variable Aperture set to f/2.0. Depth of field is 34.5 cm. Aperture opening is 24.0 mm.