Tiffen 72GG1 72mm Glimmer Glass 1 FilterThe Tiffen 72mm Glimmerglass 1 Filter is a beauty filter whose function is two-fold: in addition to modifying the appearance of the image itself, it also features a sparkling appearance when viewed from the front, instilling more confidence in the model. The filter itself helps soften skin details, blemishes, and wrinkles. It also produces glowing highlights and a mild reduction in contrast for a more ethereal appearance. The 1 density provides a small amount of softening and overall image alteration.Tiffen 72CP 72mm Circular PolarizerPolarizer/Circular Polarizer Essential general-use outdoor color filter Produces deeper skies and minimizes reflections in black and white and color photography Combine a Polarizer with a Red 25 for incredibly dramatic black and white landscapes Can be rotated to achieve desired effect Use the Tiffen Polarizer with the enhancing filter for more dramatic effects A Circular Polarizer has the same effect as a Polarizer and is used on cameras with beam splitting metering systems commonly found on auto focus SLR's (for most 35mm auto-focus cameras see your camera manual). Area of sky most effectively polarized with a Circular Polarizer: Point your index finger at the sun. With your thumb extended at a right angle (90°), rotate it around the axis of the index finger. It will point out the band of deepest blue from horizon to horizon. Polarizing Filters Polarizers provide color and contrast enhancement. Reflected light often shows up as whitish glare that washes out color in an image. A Polarizer corrects this problem producing deep, dramatically blue skies. It also removes glare from non-metallic surfaces, such as windows and water. Color saturation in general, especially outdoors, can be improved significantly.