Sunday, March 13, 2016

How to Set a Camera for a Neutral Density Filter

How to Set a Camera for a Neutral Density Filter

When you want to decrease your shutter speed to shoot a long exposure, like taking a photo of a waterfall to turn the water into a silky-looking flow, you need to decrease the amount of light coming into the camera. One way to reduce the light is by adding a neutral density filter to your lens. A neutral density filter reduces the light entering the camera without changing the color of the light. By reducing the light, to arrive at the same exposure value -- that is, the amount of brightness -- you lengthen the shutter speed, which blurs the image.

Instructions

    1

    Set your camera's ISO to 100 or its lowest value.

    2

    Frame your subject with your camera and note the exposure. The exposure is the combination of the shutter speed and the f-stop. Find the values displayed inside your camera's viewfinder. For example, on a sunny day a common exposure is a shutter speed of 1/125 and an f-stop of 16.

    3

    Screw the neutral density filter to your camera's lens.

    4

    Determine how many stops of light the neutral density filter removes. Most labeling systems list the common neutral density filters as 2x, 4x or 8x. This means 1-stop, 2-stops or 3-stops of light removed, respectively. Darker filters reduce the light further; refer to the filter's instructions to find out by how much.

    5

    Decrease the shutter speed by the number of stops of light removed. Do this by halving the shutter speed for each stop. For example, if the shutter speed is 1/125 and you remove two stops of light, then the shutter speed becomes 1/30. When you halve 1/125, you get 1/60, and for the second stop of light you halve again and get 1/30. For a third stop of light, the shutter speed becomes 1/15.

    6

    Set the new shutter speed on the camera using the appropriate dial.


How to Set a Camera for a Neutral Density Filter

When you want to decrease your shutter speed to shoot a long exposure, like taking a photo of a waterfall to turn the water into a silky-looking flow, you need to decrease the amount of light coming into the camera. One way to reduce the light is by adding a neutral density filter to your lens. A neutral density filter reduces the light entering the camera without changing the color of the light. By reducing the light, to arrive at the same exposure value -- that is, the amount of brightness -- you lengthen the shutter speed, which blurs the image.

Instructions

    1

    Set your camera's ISO to 100 or its lowest value.

    2

    Frame your subject with your camera and note the exposure. The exposure is the combination of the shutter speed and the f-stop. Find the values displayed inside your camera's viewfinder. For example, on a sunny day a common exposure is a shutter speed of 1/125 and an f-stop of 16.

    3

    Screw the neutral density filter to your camera's lens.

    4

    Determine how many stops of light the neutral density filter removes. Most labeling systems list the common neutral density filters as 2x, 4x or 8x. This means 1-stop, 2-stops or 3-stops of light removed, respectively. Darker filters reduce the light further; refer to the filter's instructions to find out by how much.

    5

    Decrease the shutter speed by the number of stops of light removed. Do this by halving the shutter speed for each stop. For example, if the shutter speed is 1/125 and you remove two stops of light, then the shutter speed becomes 1/30. When you halve 1/125, you get 1/60, and for the second stop of light you halve again and get 1/30. For a third stop of light, the shutter speed becomes 1/15.

    6

    Set the new shutter speed on the camera using the appropriate dial.



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