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#21
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So, Why FF ?
OK but still, what about the image size, field, aspect ratio ... Think about it. Why would the image size, or aspect ratio be different (for a print)? I never said anything about prints, but printed images would essentially be the same as screen images. The resulting image/print is still not going to particularly good. An iPhone would be better. As far as field, who knows what you mean by field. I thought it'd be obvious. I think viewing angle might best describe it. i.e. the angular size of the total view, e.g. 20 x 30 degrees . |
#22
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So, Why FF ?
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#23
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So, Why FF ?
If you meant *field of view* that would be lens FL controlling. Field of view sounds right, but what is "... lens FL controlling" ? |
#24
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So, Why FF ?
In article ,
wrote: If you meant *field of view* that would be lens FL controlling. Field of view sounds right, but what is "... lens FL controlling" ? focal length |
#25
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So, Why FF ?
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#26
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So, Why FF ?
Field of view sounds right, but what is "... lens FL controlling" ? It means the *field of view* is controlled, or determined by the focal length (FL) of whichever lens is used. Only if the size of the sensor exceeds the size of the image produced on it by the particular lens. |
#27
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So, Why FF ?
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#28
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So, Why FF ?
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#29
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So, Why FF ?
Forget about calling lenses or sensors anything
( e.g. FF = 24 x 36 sensor ) . A lens will project an image that has a field roughly inversly proportional to the FL. On 35mm film, a 16mm lens typically had a vastly bigger field than a 300mm lens. If the sensor is smaller than the projected image, then some of the field is lost. A smaller sensor with the same number of ( smaller ) pixcels, used with the same lens will record an image as if a longer lens were used. |
#30
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So, Why FF ?
In article ,
wrote: A lens will project an image that has a field roughly inversly proportional to the FL. On 35mm film, a 16mm lens typically had a vastly bigger field than a 300mm lens. nope. you're confusing projected image with field of view. a 16mm lens has a wider field of view than a 300mm lens, but its image circle (what it projects) is about the same, possibly a little smaller. If the sensor is smaller than the projected image, then some of the field is lost. that part is true. A smaller sensor with the same number of ( smaller ) pixcels, used with the same lens will record an image as if a longer lens were used. that's why it's called a crop sensor, and the number of pixels (no c) is irrelevant. |
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