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Camera calculator - Calculating the sensor diagonal, sensor height & width,sensor ratio and pixel size

The calculation of the sensor diagonal is helpful for selecting the right lens. The image circle of the lens must be at least as large as the sensor diagonal, otherwise vignetting effects will occour. Since many optical errors occur especially in the peripheral areas of the lens, an oversized image circle diameter is always ideal.

Calculation sensor diagonal and image circle diameter


Sensor calculations based on sensor resolution and pixel size

Note: For simple calculations please select a value from the drop-down box! Enter your own values by selecting "User def.." in drop-down list!

Sensor size in pixels (x-direction):
Sensor size in pixels (y-direction):
Pixel size in µm:


Calculated sensor diagonal:
Calculated sensor length:
Calculated sensor height:
Calculated sensor ratio:


Sensor calculations based on sensor dimensions in millimeters

Note: For simple calculations please select a value from the drop-down box! Enter your own values by selecting "User def.." in drop-down list!


Sensor size in pixels x-direction:
Sensor size x-direction in mm:
Sensor size y-direction in mm:


Calculated pixel size in µm:
Calculated sensor height in pixels:
Calculated sensor diagonal:
Calculated sensor ratio:


Further explanations and details on these calculations can be found in chapter "Sensor and pixel sizes" and "Image circle diameter".

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