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04/04/2004 02:50:31 PM · #1 |
In another thread someone said
28-135mm refers to the focal length of the lens
but what does that mean? What does mm stand for?
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04/04/2004 02:55:24 PM · #2 |
The distance from the optical center of the lens to the image sensor when the lens is focused on infinity. The focal length is usually expressed in millimeters (mm) and determines the angle of view (how much of the scene can be included in the picture) and the size of objects in the image. The longer the focal length, the narrower the angle of view and the more that objects are magnified.
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04/04/2004 02:56:24 PM · #3 |
Originally posted by WildflowerJoy:
In another thread someone said
28-135mm refers to the focal length of the lens
but what does that mean? What does mm stand for? |
"mm" stands for millimeters. The 28-135 means that this is a zoom lens, with a zoom range from 28mm to 135mm.
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04/04/2004 03:04:37 PM · #4 |
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04/04/2004 03:19:29 PM · #5 |
| Thanks for the information... the tutorial answered all my questions. |
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