Samsung Digital Camera (empowered to achieve) - Manual (Page 14)

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GX-10 Camera Characteristics
The captured area (view angle) will differ between the GX-10 and 35 mm SLR cameras even if the
same lens is used because the format size for 35 mm film and the CCD are different.
Sizes for 35 mm film and CCD
35 mm film : 36x24 mm
GX-10 CCD : 23.5x15.7 mm
Angles of view being equal, the focal length of a lens used with a 35 mm camera must be
approximately 1.5 times longer than that of GX-10. To obtain a focal length framing the same area,
divide the focal length of the 35 mm lens by 1.5.
Example) To capture the same image as a 150 mm lens attached to a 35 mm camera
150÷1.5=100
Use a 100 mm lens with the GX-10.
Conversely, multiply the focal length of the lens used with GX-10 by 1.5 to determine the focal
length for 35 mm cameras.
Example) If 300 mm lens is used with GX-10
300x1.5=450
Focal length is equivalent to 450 mm lens on a 35 mm camera.