• 2-Stop EV to Slow the Shutter Speed and/or Use Larger Aperture
• Optical Glass Filter w/ Anodized Aluminum Ring
• Double Threaded Filter Rings, Stackable
• Smooth Filter Thread
• Limited 2-Year Manufacturer Warranty
The Fotodiox ND4 Filter is a true neutral density filter designed to darken the image by 2-stops. The filter is double threaded allows stack other filter on top of it. It features an even, neutral gray color for creative photography applications. ND4 filter offers a 2-stop EV value which allows you to slow down the shutter speed or use a larger aperture in bright light conditions. Neutral Density filters have their unique applications and offer the possibility of achieving otherwise impossible results. ND filters reduces the amount of light reaching the film/CCD. Fotodiox ND filters are a true neutral grey and do not color cast the images.
Four Main Uses:
• Enables slow shutter speeds to be used, allowing film to record movement in subjects such as waterfalls, clouds, or cars.
• Decrease depth of field by allowing wider apertures to be used, in turn helping to separate subjects from their background.
• Decrease the effective ISO of high-speed film and allow it to be used outdoors in bright situations.
• Allows video cameras (which have fixed shutter speeds) to film subjects such as snow, sand or other bright scenes that can cause overexposure.
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