Sensor format

1/1.33" sensor

Large phone-sensor format used in flagship smartphones since 2020.

9.6×7.2 mm
Dimensions
3.61×
Crop factor
69 mm²
Area (8% of FF)
-3.6
Stops of light vs full frame
4:3
Aspect ratio
8.3 µm
Circle of confusion

About 1/1.33" sensor#

Large phone-sensor format used in flagship smartphones since 2020.

Typical cameras: Samsung Galaxy S20 Ultra.

Compared to other formats#

APS-CFour Thirds / Micro Four Thirds1" (one-inch) sensor1/1.33" sensor1/2.3" sensor

Lens needed for the same framing#

Full-frame focal lengthEquivalent on 1/1.33" sensorHorizontal angle
14 mm3.9 mm102.1°
24 mm6.7 mm71.6°
35 mm9.7 mm52.6°
50 mm13.9 mm38.2°
85 mm23.6 mm23.0°
135 mm37.4 mm14.6°
200 mm55.5 mm9.9°

Equivalent aperture for depth of field#

On 1/1.33" sensorFull-frame equivalent
f/1.4f/5.0
f/2f/7.2
f/2.8f/10.1
f/4f/14.4
f/5.6f/20.2
f/8f/28.8

Frequently asked questions#

What is the crop factor of 1/1.33" sensor?

3.61× (diagonal 12.0 mm vs 43.3 mm for full frame).

How big is a 1/1.33" sensor sensor?

9.6 × 7.2 mm, an area of 69 mm².

Is 1/1.33" sensor good in low light?

At the same exposure it gathers 3.6 stops less total light than full frame, so expect roughly that much more visible noise at equal print size. Modern processing narrows but doesn't erase the gap.

Last updated October 03, 2026 · How we calculate · Sources

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