49mm ND (Neutral Density) Filter for Pentax 100mm f/2.8 WR D FA smc Macro Lens - Cardinal Camera

• UPC   641796577316
• Neutral Density filters reduce the amount of light passing through the camera lens without changing the color of the scene. They are especially useful in bright light conditions to help prevent overexposure. Neutral Density filters also allow proper exposure at a wider lens opening for reduced depth-of-field to highlight a key subject by making the foreground and/or background out of focus. NDs are must have filters especially if you are thinking of doing more landscape and nature photography Neutral Density Filters - enable slow shutter speeds to be used, especially with high-speed films - record movement in subjects such as waterfalls, clouds, or cars - decrease depth of field by allowing wider apertures to be used, which helps separate subjects from their background - decrease the effective ISO of high-speed film (above ISO 400) and allow it to be used outdoors in bright situation Your camera's lens thread size will be marked somewhere on the lens barrel or printed underneath your lens cap. This number is always preceded by a "Ø" (diameter) symbol. For example: Ø58 = 58mm lens thread size Compatible with Pentax Lens : 100mm f/2.8 WR D FA smc Macro Lens