Studio : Tiffen Publisher : Tiffen Binding : Electronics Product Description Tiffen 77mm Variable Neutral Density Filter offers a unique way of maintaining total control over your depth of field as well as presenting an efficient way to create some special effects. The filter is designed with a built-in rotating ring that controls neutral density ranging from 2 - 8 stops (0.6- 2.4). The heavier the density, the slower your shutter speed will be. This longer exposure allows the shutter to remain open long enough to record the same amount of light but will also create movement within the shot. Another major benefit of this filter is the elimination of having to buy and carry around individual neutral density filters. With this one filter, you can rotate to the degree of ND you want - a real time and money saver. Simply mount the filter on your lens, set it to "Min" density then frame and focus. Care must be taken with focusing at heavier densities to make sure focus is accurate. However, if it isn't, switch to manual focus and rotate to the desired degree of filtration. Tiffen 77mm Circular Polarizer Filters - Light rays which are reflected become polarized. Polarizing filters are used to select which light rays enter your camera lens. They can remove unwanted reflections from non-metallic surfaces such as water or glass and also saturate colors providing better contrast. The effect can be seen through the viewfinder and changed by rotating the filter. The filter factor varies according to how the filter is rotated and its orientation to the sun. Tiffen Belt Filter Pouch, Large is designed to carry and protect 4 filters 62-82mm. The case is made from Cordura nylon with f padded compartments. There is a belt loop to attach the pouch to a belt or strap. 0
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