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Forced Perspective? Lenses to use on the 7D?


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#1 Jean Paul DiSciscio

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Posted 09 January 2010 - 10:12 AM

I've been experimenting with Forced Perspective recently, and was curious if anyone had an opinion on what lens would achieve my desired effect on the 7D.

I'm shooting a miniature antique ambulance in the foreground of a real hospital.

I tested this with my Canon XH-A1 and the effect worked beautifully with infinite focus. I'm having some trouble achieving this with my 18mm lens for the 7D that I just purchased.

What lenses have macro capabilities, while maintaining focus of the background?
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#2 Saul Rodgar

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Posted 09 January 2010 - 02:13 PM

I've been experimenting with Forced Perspective recently, and was curious if anyone had an opinion on what lens would achieve my desired effect on the 7D.

I'm shooting a miniature antique ambulance in the foreground of a real hospital.

I tested this with my Canon XH-A1 and the effect worked beautifully with infinite focus. I'm having some trouble achieving this with my 18mm lens for the 7D that I just purchased.

What lenses have macro capabilities, while maintaining focus of the background?


The smaller sensor sized camera (more depth of field) like the XH-A1 will be a better camera to achieve this with than a 35 mm APS-C sensor sized camera. Small apertures (also more depth of field) will be better suited for this on any lens, beyond that a split diopter may do the trick much better than a macro lens.
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#3 Chris Keth

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Posted 09 January 2010 - 09:59 PM

You just need to stop down more. On an 18mm lens at f22 focused for hyperfocal distance, the depth of field extends from 1'4" to a short infinity. You should be able to do that fine.
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