GH3 technical question

S

stefanocps

Well-known member
i studied a book few weeks ago about the use of lens, zooming or getting closer. one of the two will change the relation insie the composition (zooming i think) th eother no. who have a link who talks about this apsect of fotography, i forget and wantto studi it better
thanks
 
stefanocps said:
i studied a book few weeks ago about the use of lens, zooming or getting closer. one of the two will change the relation insie the composition (zooming i think) th eother no. who have a link who talks about this apsect of fotography, i forget and wantto studi it better
thanks
Click to expand...

Zooming will change the compositional relation.
 
Moving the camera position will change your perspective on your subject, which is made famous by the 'Vertigo' or 'Jaws' dolly-in zoom-out shot.

Zooming without moving the camera will simply crop in to your shot, without changing perspective.
 
stefanocps said:
seemes that this 2 answer are opposite...am i wrong?
Click to expand...
The Dingo is correct. For a foreground subject, distant background, then if you halve the camera-subject distance the subject will be much bigger in frame but the background will hardly change at all. So if the subjects head was the same size in shot as a distant building, in the second case it will be much larger than the building.

Zoom in and you won't get that effect - it will be effectively cropping as The Dingo said.

It's more normal to think of a given size for foreground (head and shoulders say) and then think of varying camera-subject distance and zoom to compensate - to keep the same size head and shoulders - that's when we talk of change of perspective. And yes - do the variations in subject distance and zoom at the same time in shot and it's the "Jaws effect". Definitely one to be used sparingly......... :)
 
ok. also if i change lens, for example from a 35 to a 85, remaining in the same position, what case is? both thing will happen it seems?
 
stefanocps said:
ok. also if i change lens, for example from a 35 to a 85, remaining in the same position, what case is?
Click to expand...

If the camera stays in the SAME position, then it does not matter which lens you use, the perspective will always be the SAME.

Also, keep in mind that when using head and shoulders "portrait" framing you need to be at least 5 feet from your subject or you will distort their features. ( you get small ears with a big nose when shooting closer than 5 feet )
 
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