super 35 Crop Factor & Equivalent Focal Length Calculation Verification

Formula Explanation

The crop factor determines how a Super 35 camera sensor size affects the field of view compared to a full-frame sensor.

Example Calculation

Given Values:

• Sensor Width: 27.03mm

• Sensor Height: 14.26mm

• Full Frame Lens Focal Length: 50mm

• Full Frame Sensor Diagonal: 43.3mm

Step 1: Calculate Sensor Diagonal

First, the sensor diagonal is determined using the width and height. The result is 30.56mm.

Step 2: Calculate Crop Factor

Dividing the full-frame diagonal (43.3mm) by the sensor diagonal (30.56mm) gives a crop factor of 1.417.

Step 3: Calculate Equivalent Focal Length

Multiplying the lens focal length (50mm) by the crop factor (1.417) results in an equivalent focal length of 70.84mm.

Final Verification Results

• Sensor Diagonal: 30.56mm

• Crop Factor: 1.417

• Equivalent Focal Length (for 50mm lens): 70.84mm