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Originally Posted by robski
I think the point Don is trying to make is the flattening effect on the vanishing point perspective which is more to do with focal length and lens to subject distance.
Rob
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On the button. When I was out with a group some time ago choice of lens was being made on the basis of what focal length fits what I see from where I am standing. People did not realise that by either moving closer to ( where possible ) or further back would allow them to select a different focal length that may give their pictures more impact. As digital slrs are becoming more affordable, people are moving up to these systems that accept a huge range of lenses. If your last camera was a short zoom range compact, the first lens choice tends to favour the salesmans recommendation yet he may never have taken a picture in his life.
Landscapes are not only the domain of wide angles for panoramic views but it is an area where their huge dof can be very effectivly used. Telephoto's can be used to draw up the background that a wide angle will not.
Many pictures posted here show that many nature subjects positivly benefit from the step back and use a telephoto approach rather than a shorter lens.
Its all about understanding the effects of using a particular lens on a subject and not what one that just fits the view. Before the common use of zooms a conscious choice had to be made, with a zoom it is too easy to zoom without thinking about the effect.
As I mentioned before, some pictures have details of lens and aperture, that allow you to see the effect of using a particular lens and others don't.
So pics or links that show the image benefits of lens choice are the most effective way of broadening members awareness.
Don