Canon APS-C Sensor (1.6× Crop)
Direct Answer
The Canon APS-C Sensor (measuring 22.2 × 14.8 mm with an active area of 328.6 mm² and a 26.68 mm diagonal) is Canon's proprietary sensor dimension, operating with a 1.62× (commonly rounded to 1.6×) crop factor relative to 35mm full frame. Used across all Canon EOS Rebel, EOS 7D/90D, EOS M, and EOS R-series APS-C bodies (R7, R10, R50), it is slightly smaller than the standard 1.5× APS-C format.
Source: Canon Inc. Technical Specifications / CIPA
Specs
| Width × Height | 22.2 × 14.8 mm (approx. 22.3 × 14.9 mm in newer CMOS dies) |
| Diagonal Dimension | 26.68 mm |
| Active Surface Area | 328.6 mm² (approx. 38.0% of 35mm full frame) |
| Crop Factor | 1.62× (Standard 1.6× focal multiplier) |
| Native Aspect Ratio | 3 : 2 |
| Comparison to Standard 1.5× APS-C | Canon sensor is 1.3 mm narrower and 0.8 mm shorter (~10.4% smaller surface area) |
| Camera Systems | Canon EOS R7, R10, R50, R100, EOS 90D, EOS 7D Mark II, EOS Rebel series |
Why Canon Chose 1.6×
In the early 2000s, Canon built dedicated semiconductor fabrication lines for its proprietary CMOS image sensors. Choosing a $22.2 \times 14.8\text{ mm}$ die size maximized the number of functional dies yielded per silicon wafer, lowering production costs for early DSLRs like the EOS 10D and Digital Rebel (300D). As a result, a $50\text{ mm}$ lens on Canon APS-C provides an effective field of view of 80.0 mm ($50 \times 1.6$) rather than the $75\text{ mm}$ of Sony/Nikon/Fuji ($50 \times 1.5$).