What is an image sensor format in digital photography?

An image sensor format defines the shape and size of a digital camera's image sensor, which directly affects the lens angle of view and field of view. Because many digital sensors are smaller than traditional 35 mm film frames, lenses can result in a narrower field of view and an effect known as a crop factor. Sensor sizes are frequently expressed as an optical format in inches alongside other measurement systems.

What we know

• The image sensor format determines the shape and size of a digital camera's image sensor. [1, 2]
• The image sensor format of a digital camera determines the angle of view of a particular lens. [2]
• A smaller image sensor compared to the 35 mm film format results in cropping of the image, known as field-of-view crop. [2]
• Sensor size is often expressed as an optical format in inches. [2]

Where to go next

• how it workedHow do charge-coupled devices and CMOS sensors work?
• what followedWhat is field-of-view crop factor?
• compared withHow does digital photography differ from film photography?
• the bigger pictureWhat is an image sensor?
• whenWhen were the first consumer digital cameras introduced?
• an unexpected connectionHow did space exploration influence digital photography?Much of early digital photography technology originated in the space industry as customized embedded systems with sophisticated remote telemetry.

Sources

• [1]image sensor format (Wikidata Q539558) · CC0 1.0
• [2]Image sensor format · CC BY-SA 4.0
• [3]Image sensor · CC BY-SA 4.0
• [4]Digital photography · CC BY-SA 4.0
• [5]Monochrome photography · CC BY-SA 4.0