22. A compact camera has the following specifications: Sensor: "1-inch" CMOS (13.2 mm × 8.8 mm), 20.1 MP, aspect ratio 3:2 Lens: 24 to 120 mm, ƒ /1.8–2.8. Using the maximum focal length at an aperture setting of f /2.8, (a) Make a sketch of the optical system, simplifying the camera to a single lens with aco-located aperture. Draw and label a marginal ray from an object located at infinity.Draw and label the chief ray taken from the edges of the entrance window. (b) What is the aperture diameter? (c) What is the horizontal angular field-of-view? (d) Calculate the permissible circle of confusion diameter C, typically taken as 1/1500 ofthe sensor diagonal dimension. How does this compare to the pixel pitch? (e) Determine the value for the hyperfocal distance (f) What is the minimum distance that an object would appear in acceptable focus, whilstobjects at infinity also appear in acceptable focus? What is the required camera focussetting?

Solved: 22. A compact camera has the following specifications: Sensor: "1-inc

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22 a compact camera has the following specifications sensor 1 inch cmo

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22. A compact camera has the following specifications: Sensor: "1-inch" CMOS (13.2 mm × 8.8 mm), 20.1 MP, aspect ratio 3:2 Lens: 24 to 120 mm, ƒ /1.8–2.8. Using the maximum focal length at an aperture setting of f /2.8, (a) Make a sketch of the optical system, simplifying the camera to a single lens with aco-located a