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Old Nov 25, 2003, 3:45 PM   #1
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Default EF-S lenses

Is the new EF-S lens actually an 18mm lens or is it also converted by the 1.6 multiplier down to about a 28mm? Thanks.
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Old Nov 25, 2003, 4:56 PM   #2
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An 18 mm lens is an 18mm focal length lense. The 1.6 factor is a result of the camera sensor being smaller than the standard 35mm
frame. It is as if a frame is placed over the 35 mm image area which is less than 1/2 of the 35mm size. An object in the image will be the same size using the 18mm lens with either a full frame 35mm camera or a digital camera like the Canon Rebel or 10D; however the field covered by the whole image will look like a 28.8 mm lens was used. Confusing. The objects in the frame are not magnified by 1.6X only the field of view is reduced to make it look like that.
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Old Nov 26, 2003, 8:00 AM   #3
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thank you
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