Sensor Size: A camera’s sensor is like a single exposure of film, but it can be used repeatedly.

Megapixels: Higher resolution with finer details. However, cramming many megapixels onto a small sensor leads to challenges in low-light .

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Full Frame: Based on the size of 35mm film (36 x 24mm), full frame sensors are found in professional-level DSLRs and mirrorless cameras.

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Noise and High ISOs: A small sensor with 25 megapixels will exhibit more noise at high ISOs than a full frame sensor with the same megapixel count.

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APS-C: Crops the full frame image by about 1.5x (22 x 15mm). Common in entry-level to mid-level DSLRs and some mirrorless cameras.

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Larger Sensors : Handle High Megapixel Counts Better.

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A larger sensor captures more light, resulting in better overall image quality.

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Larger sensors provide more room for each pixel, resulting in better image quality.

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Standardized sensor sizes make it easy to compare cameras. Here are the common ones:

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A 50 MP full frame sensor has larger pixels than a 50 MP APS-C sensor.

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