Re: PHOTO: Lenses
From: Chris Darlington <chris.darlington@sympatico.ca>
Gerry,
I not sure I agree with you on this one or it's possible that I simply
can't follow what you're saying.
The longer the lens = greater magnification which equals greater
compression which ultimately produces a flater effect. I'm positive
that you agree with me on that.
Naturally a focal length of 28mm produces less magnification therefore
less compresion which gives more distorted effect.
So I guess I'm going to have to disagree with you on your last sentence
now that I've thought about it. I took an optics course once where we
photographed the front of a car with three different lenses. We kept
the same framing and took one shot with a 28mm , one with a 105mm and
one with a 200mm. The effect of each lens was profoundly different from
one another and I encourage people to try this.
I'd like to take a few iris shots with a fish eye lens , now that would
be cool
Chris
Gerry Snyder wrote:
>
> From: Gerry Snyder <gcsnyd@loop.com>
>
> Chris Darlington wrote:
> >
> > Hello everybody,
> >
> > One other point which I feel important when choosing a lense is that one
> > should be aware that different focal lengths create different effects.
> > If you opt for a longer lense between 135mm and 200mm you'll notice that
> > the final result will have a rather compressed and flat look.
> >
> > A photo with a wide angle lense like a 28mm or less with produce a more
> > distorted three dimensional effect...
>
> Chris,
>
> I know that you understand this, but the way that you state it may
> mislead some.
>
> Your descriptions are correct if the camera-object distance is changed
> to maintain the same image size on the film. But it is the camera-object
> distance that determines the flatness or distorted 3D effect, not the
> focal length of the lens.
>
> Cheers,
>
> Gerry
> --
> g*@loop.com
> Gerry Snyder, AIS Symposium Chair
> Region 15 Ass't RVP, JT Chair
> Member San Fernando Valley, Southern California Iris Societies
> in warm, winterless Los Angeles
>
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