With advanced sensors, comes few additional features that helps us take better photographs.The full frame sensor comes with 2.5 times larger surface area than the APS-C sensor. Due to this reason full frame sensors tend to record much more details than an APS-C sensor.
The very nature of a full frame sensor is a good ISO performance. For example, if you shoot a picture with ISO 800 on an APS-C sensor, you tend to get a lot of noise. Whereas, with the same ISO 800 on a full frame sensor, you get less noise.
The lenses are manufactured for the standards kept for full frame cameras. This means that the focal length on the lens is correct only when it is on a full frame camera. For example, if you use an 85mm lens on a full frame camera you will get a picture of 85mm focal length. Whereas, if the same lens is mounted on an APS-C sensor, you would get a picture for a focal length of 135mm because of “crop factor”. Generally, all APS-C sensor cameras or at least most of them come with a crop factor of 1.5 or 1.6.
The aperture value also gets affected by this crop factor. For example, if you use a lens of aperture value 1.8 on your full frame camera you will get a picture for a value of F 1.8. Whereas if you mount the very same lens on your APS-C sensor camera you may get a value of F 2.8 because of the crop factor, though the EXIF details shows F 1.8.
Guess this blog helped you understand the difference between Full Frame sensors and APS-C Sensors, let us know in the comments below if you have any clarifications.
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