Filters
Heliopan
Product: filters
"Heliopan offers the fullest range of filter types over the greatest range of sizes."
www.hpmarketingcorp.com

Hoya
Product: HMC, SUPER HMC filters, SUPER HMC Circular Polarizer and the Ultra Thin series filters
"See a clear difference. Nothing helps you get the whole picture like Hoya HMC and SUPER HMC (multi-coated) filters."
www.thkphoto.com

Lee Filters
Product: Lee Filter System
"Whether you are using an enhancer, graduated neutral-density or graduated sky-blue, Mother Nature would approve."
www.leefilters.com

Schneider Optics Inc.
Products: B&W filter
"When it comes to preserving photo image quality, B&W filters clearly beat all of the others."
www.schneideroptics.com

Singh-Ray Filters
Product: Circular Polarizer Plus
"The Singh-Ray circular polarizer filter enhances flesh tones, warms up cold, flat lighting and naturally enhances all colors."
www.singh-ray.com

Tiffen
Product: filters
"The Tiffen Enhancing Filter makes the vivid colors of autumn even more vivid."
www.tiffen.com