![]() ![]() Night photography is well suited for motion blur since the lower light levels require longer exposures. The combination of a tripod-mounted camera and slow shutter speeds can create intriguing motion blurs from the movement of the subject. Find this button and use it!Ĭreative Use of Subject and Camera MotionĤ SLOW SHUTTER SPEEDS TO BLUR SUBJECT MOTION Fortunately, most DSLRs have a Depth-of-Field Preview button that will preview the actual depth of field using the current aperture setting. So you may think that you have a soft, shallow depth of field, only to find later that much more is in focus than you intended. It doesn’t stop down to the specified aperture until the moment of exposure. Regardless of what the aperture is set to, when you look through the viewfinder of an SLR, the widest aperture is used to allow as much light as possible for composition. If it fits the situation and your photographic style, a tripod is often an essential component. Any form of camera motion is more likely to be apparent in shots made with a telephoto focal length, so brace yourself or the camera as much as possible when taking the shot. As the old saying goes, your mileage may vary, so you should test your lenses to get an idea of what the slowest usable speed is. Lenses that have image stabilization or vibration reduction let you get by with much slower shutter speeds than lenses without this feature. For example, with a 100mm focal length, the shutter speed should not be less than 1/100 second. ![]() A common rule of thumb is to calculate minimum shutter speed using the focal length of the lens. For handheld shots, use a fast enough shutter speed so that camera shake doesn’t render an unsharp image. So let’s begin with a look at a few ways to ensure that the photo is sharp. Controlling Sharpness in the CameraĬreative use of blur begins in the camera, but before you can effectively use “unsharpness,” you need to know how to control sharpness. In this article we’ll take a look at several ways to take advantage of the beauty of the blur. Sharpness is an important element in any photograph, but a creative use of blur-whether from shallow depth of field, motion blur, camera motion, or applied with the Lens Blur filter in Photoshop CS4-can also work to enhance an image. Remember that you can adjust the brightness and contrast of the image after the blur effect is generated, so don’t be afraid to work aggressively and get the effect you really want.If you’d like to download the images used in this tutorial to practice these techniques, visit and navigate to the Magazine section. Familiarizing yourself with these four and carefully evaluating the differences between them is a worthwhile investment of your time. ![]() Soft Light is perhaps the fourth most useful Blend Mode after Normal, Lighten and Screen for blurring effects. Overlay, Soft Light and Hard Light all affect contrast, and lightening and darkening the image with values above and below 50% gray. Just as Screen is more intense than Lighten, Multiply is more intense than Darken and may clip shadow detail if opacity isn’t adjusted, again, either globally or locally. Darken and Multiply generate effects that spread darker values into lighter values while similar effects can be created in the traditional darkroom with split-focused and defocused exposure, the results are often more graphic than photographic, more gothic than romantic. Lighten and Screen both reveal values of the top layer only if they’re lighter than those below them, and both will lighten darker areas of an image, creating a soft haze that becomes pronounced in shadows Screen is more intense and may clip highlights if opacity isn’t reduced. Lighten and Screen are the most useful additions as they tend to produce effects that simulate traditional camera blur and soft-focus effects best. Normal adds no extra benefits, but keep in mind that, by planning to reduce opacity, you may choose to apply a filter aggressively. ![]()
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