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[OM] Re: 7-14 Price

Subject: [OM] Re: 7-14 Price
From: Moose <olymoose@xxxxxxxxx>
Date: Fri, 11 Jul 2008 13:01:35 -0700
Andrew Fildes wrote:
> ....
>
> Given that it can only be used on a 4/3rds sensor, you're never going to get 
> better than 14mm POV fom it. Meanwhile, I have the Sigma 12-24mm which is a 
> full 35mm frame lens.
>   
I think horizontal angle of view is the more valid comparison for super 
wide. Calculated on that basis, 12mm on FF is 10% wider than 7mm on 4/3, 
112.6 vs. 102.4.

That's purely theoretical. Production lenses do vary from nominal focal 
length values.

Moose

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