's Forum Archives - General

Archive Home >> General(1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 )

what's up with Tyler's chin???(6 posts)

what's up with Tyler's chin???elviento
May 26, 2002 9:14 PM
optics (read this, hopefully it makes sense)namir in SoCal
May 26, 2002 10:29 PM
It's a trick of the lens. Because of the way zoom lenses work (this is most certainly shot with a zoom lens), they appear to compact the entire visual field, so that things far away and things close by will both be in focus (with the right depth of field, of course) but will appear to be right near each other. You see this often with nature photography or safari-type stuff-- little animals will appear to be right up against trees that they're quite far from, but the optics make you think otherwise. Wide-angle lenses are oppposite: the perspective is skewed so that things look spread apart further than they are.

So in reference to this picture, the zoom lens is compacting the rider's neck (adam's apple) and chin into one plane. That's why he looks so weird.

Hope this makes some sense.

sort offeathers mcgraw
May 27, 2002 5:10 AM
You're right except that it has nothing to do with optics. It has to do with perspective. Let's say Tyler's chin is six inches in front of his neck. If you look at him from six inches away, his neck is twice as far as his chin, and would look smaller. If you look at him from fifty feet away, his neck is one percent farther away, and wouldn't be significantly smaller in comparison. Lenses don't create this effect, where you stand creates it. A lens with a longer focal length simply makes things bigger so you can fill the frame with faraway objects.

Also, it's shot with a long lens, not necessarily a zoom lens. Zoom lenses have a range of focal lengths, while regular lenses are fixed. There's no way of knowing whether the shot was taken with a zoom lens.
Thanks for the explanation.elviento
May 27, 2002 6:13 AM
Gee, I almost hit "post" of my message "Dark Horse d' Giro -- Jay Leno". Would be fitting for an Italian to win a Giro stage, wouldn't it?
it's an aero bump!(Nm)merckx56
May 27, 2002 10:34 AM
musta dribbled ginseng up on his chin (nm)bianchi boy
May 27, 2002 10:59 AM