Hi All, I've been experimenting with using a circular polarizing filter when shooting digital infrared images: http://www.dimagemaker.com/article.php?articleID=1053 Cheers, Wayne -- Wayne J. Cosshall Publisher, The Digital ImageMaker, http://www.dimagemaker.com/ Blog http://www.digitalimagemakerworld.com/ Publisher, Experimental Digital Photography http://www.experimentaldigitalphotography.com Personal art site http://www.cosshall.com/