Hey Folks, Has anyone on this list experimented with cross-polarization flash techniques? Basically, you put a linear polarizing sheet in front of your flash, and a linear polarizing filter in front of your lens. Orient the two filters at 90 degrees to each other. With this arrangement, light from the flash is polarized. Specular reflections off the subject are still polarized and as such are blocked by the lens on the camera.
This supposedly eliminates hot spots. Since a lot of my photography involves plants with waxy, shiny surfaces, this would be very useful. Of course, the down side is that the flash is less powerful with all that polarizing sheet. Does this work? I've encountered it a couple of times in macrophotography books. Barry A. Rice, Ph.D. Invasive Species Specialist Global Invasive Species Initiative The Nature Conservancy V: 530-754-8891 http://tncweeds.ucdavis.edu -- PDML Pentax-Discuss Mail List [email protected] http://pdml.net/mailman/listinfo/pdml_pdml.net
