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Norme · 06-01-2010, 07:22 PM

Hi Bob, What you are seeing is spherical aberration. Lenses on snapshot cameras are not corrected for this, as it is only apparent in architectural and macro photography. It causes straight lines to appear curved. Regards, Norm

06-01-2010, 07:22 PM	#18
Norme Always A Lifetime Forum Patron Join Date: Jul 2009 Location: Colorado Posts: 2,417 Thanks: 226 Thanked 2,607 Times in 933 Posts	Hi Bob, What you are seeing is spherical aberration. Lenses on snapshot cameras are not corrected for this, as it is only apparent in architectural and macro photography. It causes straight lines to appear curved. Regards, Norm