Full-Frame 35mm Sensor vs. Medium Format 44×33 mm Sensor
Comparing 2 standards across 9 specifications. 9 key differences identified.
The Full-Frame 35mm Sensor (measuring 36.0 × 24.0 mm with an active surface area of 864.0 mm² and a 43.27 mm diagonal) is the universal baseline benchmark in digital photography, defined with a 1.0× crop factor. Derived from the standard 35mm 135 still film format established by Oskar Barnack's Leica I in 1925, all focal length equivalents and field-of-view calculations are calibrated against it.
The 44×33 Medium Format Sensor (measuring 43.8 × 32.9 mm with an active surface area of ~1441 mm² and a 54.78 mm diagonal) provides approximately 1.67× the physical surface area of a 35mm full-frame sensor. Operating with a 0.79× 'reverse crop factor' and a native 4:3 aspect ratio, it is the digital medium format standard deployed in mirrorless systems by Fujifilm (GFX series) and Hasselblad (X system).
Specification Comparison Table
9 Parameters| Parameter / Spec | ||
|---|---|---|
|
Dimensions (Width × Height)
|
36.0 × 24.0 mm (1.417 × 0.945 in) | 43.8 × 32.9 mm (1.724 × 1.295 in) |
|
Diagonal Dimension
|
43.27 mm | 54.78 mm |
|
Active Surface Area
|
864.0 mm² | 1441.0 mm² (approx. 1.67× larger than 35mm full frame) |
|
Native Aspect Ratio
|
3 : 2 (1.50 : 1) | 4 : 3 (1.33 : 1) |
|
Flagship Camera Implementations
|
Sony A7/A9/A1 series, Canon EOS R5/R6/R3, Nikon Z6/Z7/Z8/Z9, Panasonic Lumix S5/S1, Leica M/SL | Fujifilm GFX 100 II / 100S / 50S, Hasselblad X2D 100C / 907X 50C, Pentax 645Z |
|
Crop Factor Benchmark
|
1.00× (The reference baseline for 35mm focal length equivalence) | — |
|
Standard Pixel Pitches (Modern)
|
4.5 µm (45 MP — Nikon Z8/Canon R5) to 8.4 µm (12 MP — Sony A7S III) | — |
|
Crop Factor (Relative to 35mm)
|
— | 0.79× (Reverse crop / wide-angle focal multiplier) |
|
35mm Equivalent Focal Length
|
— | Multiply lens focal length by 0.79 (e.g. 63mm f/2.8 lens ≈ 50mm f/2.2 full-frame equivalent) |