Bruce Walker wrote: >Two points about that. > >The lens does a 3D transform. By the time you get the image, the sensor >has removed the directional information and all you get to work with is >a 2D plane with colour and luminance information. All spatial info is lost. > >If *all* the information available from the light was recorded by the >sensor, you could do away with the lens entirely. You could simply >expose the sensor through the empty lens mount and recreate the scene >later with digital signal processing. (I read of some recent research >work to do just that.) > >So there's stuff going on in glass-space that you simply cannot >replicate in post-processing. > >But the second point is that you can do a pretty good PP fake of this >soft lens effect. The Orton effect isn't identical, but looks quite similar.
I think the 85 Soft is one of those lenses deliberately designed with a lot of spherical aberration, which does strike me as something that would be very difficult to recreate in software. I've come up with a pretty good soft-focus emulation recipe for Photoshop. I'll try to post it in a day or two. -- Mark Roberts - Photography & Multimedia www.robertstech.com -- PDML Pentax-Discuss Mail List PDML@pdml.net http://pdml.net/mailman/listinfo/pdml_pdml.net to UNSUBSCRIBE from the PDML, please visit the link directly above and follow the directions.
