It's really not that difficult to adjust. If you happen to already have two polarizers, then it doesn't hurt anything to try it out.
The biggest problem that you get is that you need to set a custom white balance. This was taken with two polarizers and a 2 stop ND filter. http://www.flickr.com/photos/alohadave/5008644394/ Note the wonky color (which I didn't correct for on-scene and was unable to correct in post). If you are a B&W fan, then the color cast isn't that big of a deal. It's about 8 stops of light reduction and allowed for a 15 second exposure in broad daylight. You pretty much need a way to block any light from entering the viewfinder to be able to see anything through it. On Fri, Nov 5, 2010 at 9:31 PM, paul stenquist <[email protected]> wrote: > Two polarizers will reduce the amount of light reaching the lens, just as an > ND filter would do. But I would be considered that the cross polarization > might cause diffusion. One would have to alternately rotate each of the two > filters to find a spot where they're at least somewhat compatible. Not a good > thing. > Paul > On Nov 5, 2010, at 9:19 PM, Nick David Wright wrote: > >> The first thing which comes to mind is that polarizers are much more >> expensive than NDs. >> >> The second thing is they don't darken the entire scene do they? I >> thought they change the color of the sky and remove reflections. >> >> On Fri, Nov 5, 2010 at 8:08 PM, Larry Colen <[email protected]> wrote: >>> Rather than a collection of neutral density filters, why not have two >>> fairly large polarizers and a set of step down rings so that they can be >>> used on a variety of lenses? >>> >>> Not only should you be able to get it fairly dark when they're cross >>> polarized, but you'd have adjustability. >>> >>> -- >>> Larry Colen [email protected] sent from i4est >>> >>> >>> >>> >>> >>> -- >>> 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. >>> >> >> >> >> -- >> ~Nick David Wright >> http://www.nickdavidwright.net/ >> >> -- >> 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. > > > -- > 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. > -- David Parsons Photography http://www.davidparsonsphoto.com Aloha Photographer Photoblog http://alohaphotog.blogspot.com/ -- 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.
