>JD's explanation is exactly correct, but it sort of misses part of the
>story. Your 50mm view will be cropped so the relationship between
>objects stays the same, as JD said, but with the D60 the objects "fall
>outside the frame", or, rather, have their edges cropped off. When you
>back up to get the same framing you had before, **then** your
>perspective will change, so once you back up, that 50mm lens has the
>same perspective/framing as an 80mm lens on a 35mm camera from the same
>distance.
>
>The only difference between the two views is that you will have the
>depth of field of the 50mm lens rather than the depth of field from the
>80mm lens (so basically, all things are equal except you get more depth
>of field and you have to use a different lens).
>
>Mike
Michael
I have one more question:
You say we would have DOF of 50mm lens instead of 80mm lens.
I won't disagree with that but how is it in practice because
with D60 the 50mm lens image gets not only cropped but also
enlarged after the cropping (assuming you want to have same
size photos).
The same in film world all the way:
Photo1: Taken with a 80mm lens, printed to 20*30cm.
Photo2: Taken with a 50mm lens in the same spot with the
same aperture (f-value). We print it also to 20*30cm
as above.
To get the same framing as above we need to crop it
to a 12.5cm * 18.75cm photo which must have larger
DOF because it is a smaller print taken with a
shorter lens.
Then we need to enlarge it back to 20*30cm which
also makes the DOF (look) shallower than before
enlarging, right?
Now, the question is if the DOF in Photo2 still is larger
(which I assume it to be)?
Why?
(My quess: effect (in DOF) of enlarging the photo
was smaller than the effect of a shorter lens (50 vs. 80mm)?
Again, why?
regards Vesa
_________________________________________________________________
Send and receive Hotmail on your mobile device: http://mobile.msn.com
*
****
*******
***********************************************************
* For list instructions, including unsubscribe, see:
* http://www.a1.nl/phomepag/markerink/eos_list.htm
***********************************************************
