thanks for these two images. worth a thousand words. I feel I have now a much better visual idea of how the fisheye distortion of the DA 10-17 will affect all angles, i.e. a better idea of the essential difference between DA 10-17 and DA 12-24: they indeed really are two different lenses. cool...
(and it's also always interesting to have a look at someone's book shelves :-) Axel. > Rectilinear distortions (aka barrel, pincushion or curvilinear > distortions) are optical effects the come from lens design. A fish- > eye lens is a lens corrected to produce a spherical projection, a > rectilinear lens is a lens corrected to produce a flat-field projection. > > Pentax Fish-Eye-Takumar 17mm f/4 lens on 4/3 format, natural > curvilinear projection: > <http://www.gdgphoto.com/FoV-43_11-50/content/bin/images/large/ > P1030616.jpg> > > The same lens, image corrected for rectilinear projection: > <http://www.gdgphoto.com/FoV-43_11-50/content/bin/images/large/ > Pe1030616.jpg> -- PDML Pentax-Discuss Mail List [email protected] http://pdml.net/mailman/listinfo/pdml_pdml.net to UNSUBSCRIBE from the PDML, please visit the link directly above and follow the directions.
