Certified Professional Photographer Practice Exam 2025 – All-in-One Guide to Achieve Your CPP Success!

Question: 1 / 465

Each photosite on a sensor converts electrons into what?

Image

Number

Each photosite on a sensor converts electrons into a signal. In digital photography, when light hits the sensor, it creates an electrical charge at each photosite based on the amount of light exposure. The collected charge is processed to produce a usable signal, which represents the brightness and color of that specific area of the image. This electrical signal is then converted into digital data for the final image processing.

While numbers are indeed part of this process, particularly in terms of representing pixel values after processing, the immediate output from the photosites is the electrical signal. This signal correlates directly to the amount of light received and forms the basis of the digital image. Understanding this conversion process helps clarify how cameras capture and process images, emphasizing the fundamental role of signals in photography.

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Color

Signal

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