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Forum: Pentax SLR Lens Discussion
07-14-2015, 07:02 PM
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Except that his examples are seriously flawed!
I like his stuff, normally but he does not understand what he is talking about.
OK he probably understands it, but the explanation is missing important information and as a result is just plain wrong in the end and with the examples he gives.
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Forum: Pentax SLR Lens Discussion
07-13-2015, 02:09 PM
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Exactly But that goes beyond the original question and is not a complete picture. You also need more information on how it is viewed.
Sensor size does not affect how the lens behaves.
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Forum: Pentax SLR Lens Discussion
07-13-2015, 01:45 PM
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Simply put.. take an old piece of 35mm film.
Take a photo.
Take an equivalent piece of film and put black tape around the edges to make the exposed portion of the slide to match a crop sensor size.
Take the same photo.
(Same can be done with your FF DSLR, but the tape might ruin your sensor)
With all other aspects of the camera settings, position, lighting and subject being equal (just as they would between a FF v.s crop body)
Does the resulting DOF change?
Does the resulting ISO change
Does the resulting exposure change?
The change in file size (i.e. sensor size) does not change the physical properties of the light coming through the lens.
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