Digital Photography: still images of moving water

Rivers, streams, waterfalls. These words give a clear picture in the minds of men. In an attempt to capture images of moving water, there are two different types – frozen in time, or the flow as in some of the “soft” effect of the pictures. Both forms of photography, these geological wonders are very easy to do.

The tool can be used creative camera, the two forms of motion control is the shutter speed. To freeze the water, use a fast shutter speed. Exactly how fast it takes a little experimentation, since it off, depending on how fast the water moves.

To the running water, a shutter speed is used, but again the exact exposure time is required depends on the speed of the water is in motion, so it may take a few pictures with a change shutter speed in the middle to the desired effect . obtain

Whitewater, create a shutter speed is faster than at least 1 / 15 of a second a fluffy effect, other times slower with a quantity of water than 2 seconds you can have the desired effect. It depends on the variable water moves, the speed and the amount of the desired effect.

Unfortunately, there is a magic card that use up to you to say what shutter speed, remains under what conditions. The only way to learn how to create the effect of the experience of filming scenes in each of the triggers that 1 / 15 second and 2 seconds. Start at one end of the range and shoot at each setting between the two extremes. Note the shutter speed of the image with the right amount of fluffy effect. Compare that with the approximate speed of the water.

“Unknown” water at a rate of “average” flow (average in relation to the flow of water), usually from 1 / 4 second and then shoot at a shutter speed as a stop and a stop at one of the first second / fourth This is called bracketing and is a good method of ensuring the rule at least one of his pictures have the right amount of the desired effect. To accelerate the water, starting at 1 / 8 of a second for the marketing and slower water 1 / 2 second, in any case, if support. As you gain experience in recording a jet of water, you can estimate exactly what the shutter speed you need.

Because we are using slow shutter speeds as solid support for the camera, you must clear. Of course, the best support of a tripod. Another accessory is very likely want to use a tripod to prevent camera shake, is a cable release.

If you have not do not have a cable release or your camera via a power cable news, you can trigger your camera’s timer function on your shutter speed. After all, the water moves, but Flowage itself is not going anywhere, so take your time and enjoy the movie.

If you do not have a tripod, or bring your own, is a good substitute for the device to stabilize a wall of stone fences, trees or other solid support. A monopod works well and works well as a walking stick. If he does not use a tripod or other stable support, the use of breathing techniques and good holding the camera. Keeping up with image stabilization and best techniques for the camera, should keep most people up to two stops slower than without stabilization, or about 1/8th of a second.

Speed ​​sensor, an additional consideration in the decision of moving water, especially when the subject is in shadow. It can be very difficult to obtain a fairly slow shutter speed if your camera is set to a minimum of ISO. Instead, use a 400 or 800 ISO speed, which allows you a longer shutter speed. Higher ISO does not need much light, so you can shoot with a slower shutter speed.

On a sunny day and the water moves very slowly, perhaps even a sufficient high sensitivity of ISO 800, not to the slow shutter speed, what you get for a particular decision. In this situation, with a gray filter. These filters reduce the amount of light reaches the sensor, and come in various intensities. After the production, trade mark, the intensity of the filter, or a number, such as density ND 0.3, or a filter factor, such as 2X.

Joint density range 0.1 to 0.9, while the range of 2x to 8x filter factors. The amount of light usually reduces changes in 1 / 3 of a stop for any change in the density or the filter factor.

You can decide which filters to allow the determination of the shutter of the camera recording and compare the speed of the shutter speed you want to require photograph. This difference is arrested.

Then choose the neutral density filter so that the number of stops.In general, covered 0.3 to 2 times and 0.6 to 4 times the most of their needs. This yield is reduced by 1 point or 2 stop lights, or if they stop or 3 alone, when stacked.

With neutral density filters and turning on a cloudy day or shade conditions, you can have a great depth of field parameters such as F11 or F16. By setting the number f-stop is more background and foreground to the point, if you use a small aperture. If the foreground or background out of focus you want, then use a smaller number f / stop.

Another accessory attachment with you is nice to have a polarizing filter. A polarizing filter eliminates glare from wet rocks and pools, life with the colors of the scenes and acts like a neutral density filter to two bus stops.

If you have been fighting the effects of softness in the past, with the techniques and tools presented in this article, you can create beautiful images of water, the fluffy effect.