APS-C Sensor (1.5×) vs. Medium Format 44×33 mm Sensor
Comparing 2 standards across 10 specifications. 10 key differences identified.
The Standard APS-C Sensor (measuring 23.5 × 15.6 mm with an active area of 366.6 mm² and a 28.21 mm diagonal) operates with a 1.53× (commonly rounded to 1.5×) crop factor relative to 35mm full frame. Standardized across Sony E-mount (Alpha 6000 series), Nikon DX (Z50, D500), and Fujifilm X-mount systems, it is the most popular interchangeable-lens enthusiast format.
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
10 Parameters| Parameter / Spec | ||
|---|---|---|
|
Dimensions (Width × Height)
|
23.5 × 15.6 mm (approx. 23.6 × 15.7 mm depending on silicon fab) | 43.8 × 32.9 mm (1.724 × 1.295 in) |
|
Diagonal Dimension
|
28.21 mm | 54.78 mm |
|
Active Surface Area
|
366.6 mm² (approx. 42.4% of 35mm full frame) | 1441.0 mm² (approx. 1.67× larger than 35mm full frame) |
|
Native Aspect Ratio
|
3 : 2 (1.50 : 1) | 4 : 3 (1.33 : 1) |
|
Crop Factor
|
1.53× (Standard 1.5× focal length multiplier) | — |
|
35mm Equivalent Calculation
|
A 35mm lens yields the field of view of a 53.5mm lens on full frame (35 × 1.53) | — |
|
Camera Systems
|
Fujifilm X-T5/X-H2/X100VI, Sony A6700/FX30, Nikon Z50/Zfc, Ricoh GR 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) |
|
Flagship Camera Implementations
|
— | Fujifilm GFX 100 II / 100S / 50S, Hasselblad X2D 100C / 907X 50C, Pentax 645Z |