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 Post subject: Leaning Tower
PostPosted: Sun Sep 13, 2009 1:42 am 
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Joined: Sat Sep 12, 2009 2:03 am
Posts: 1431
Location: Gold Coast Australia
Hi All,

My first post, can anyone explain why some of my towers lean. In this photo the tower and the building on the right lean.

Cheers

4xxxx

[/url]http://www.flickr.com/photos/42434784@N03/?saved=1

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 Post subject:
PostPosted: Sun Sep 13, 2009 2:01 am 
My guess would be that you shot it at a rather wide angle (18mm/27mm equiv?). Shooting at a wide angle can make objects converge at the center, giving a tilted look. Maybe you were angling your camera slightly upward, and perhaps had a little bit of tilt to your camera as well? I say this because I noticed that the ground on the left side of the photograph looks flat, but the right side of the square looks quite tilted, so I think you may have tilted left compensating for the distortion, and exaggerated the tilt on the right side of the photograph.


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 Post subject:
PostPosted: Sun Sep 13, 2009 2:59 am 
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Joined: Tue Feb 05, 2008 9:14 am
Posts: 599
Location: Netherlands
Try shooting with your camera upright and straight to see the difference in distortion. If you aim at the horizon you'll get the least amount of distortion.

I'm a bit too tired to go into the fine detail of perspective, but if you give this a read you'll know everything you need about perspective in wide angle shots:

http://www.cambridgeincolour.com/tutorials/tilt-shift-lenses1.htm

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 Post subject: Leaning tower
PostPosted: Mon Sep 14, 2009 4:49 am 
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Joined: Sat Sep 12, 2009 2:03 am
Posts: 1431
Location: Gold Coast Australia
Thanks for the info, yes it was shot at 18mm and the focus was virtually dead centre of the shot.

I looked at a similar photo with the tower closer to the centre and the focus was also dead centre of the shot. In this shot the tower was vertical and buildings behind and on one side were slanted, interesting!

Thanks for the link to the tutorial which I read and many others on the site. I will try find something similar here to take some shots and try the tips and see what results I get.

Cheers

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