On Sat, 09 Oct 2010 16:21 -0400, "Eric Weir" <[email protected]> wrote: > > On Oct 9, 2010, at 3:31 PM, Larry Colen wrote: > > > If you're shooting outdoors, it can be very handy to have a polarizer. Not > > that the polarizer won't work as well to bring out the clouds shooting > > either directly into, or directly away from the sun as it will shooting at > > 90 degrees. I.e. late afternoon, west and east wont work as well as north > > and south. > > I'd recommend getting one and playing with it. Here are some shots from my > > doing just that: > > http://www.flickriver.com/photos/ellarsee/sets/72157603433853310/ > > Quite a difference in the shots of the tree especially. > > I just bought a p3n that came with an a 50/2 lens with a Skylight 1A > filter on it. Is that a polarizer? > > I already had a UV[O] and PL filter. In the now distant past I knew what > they were for. Are they both polarizers?
The PL probably is. The others aren't. Polarizing filters are dark - like a neutral density filter. There are two types - linear and circular (those names have nothing to do with the shape of the filter as both types are usually circular in shape). Circular polarizers are generally recommended for autofocus cameras - see here: http://www.ephotozine.com/article/Guide-to-buying-a-polarising-filter-131 Your PL is probably a linear type. To use a polarizing filter, you rotate it while looking through the viewfinder to get the best effect - they work best at a angle of around 90 degrees to the sun, as Larry said. Cheers Brian ++++++++++++++++++++++++++++++++++++++++++++ Brian Walters Western Sydney Australia -- -- http://www.fastmail.fm - The professional email service -- 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.
