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Lens Shutter
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Shutter Speed, simply put, controls the speed at which the camera's lens opens and closes. It works in conjunction with film speed (a.k.a. ISO) and aperture (lens opening size) to correctly expose an image. By using the Shutter speed priority setting on your camera, you are able to control motion and capture your moving subject effectively. Let's look at the various ways to do this.

Freezing Action

You're at the Indy 500 watching your favourite racer approach the finish line, and you want to capture the car, in all its detail, and the look on the face of the driver, just before he crosses the finish line! Capturing such a shot on your camera is an example of freezing action. Compositions that showcase frozen action allow us to study a fleeting moment at our own pace, long after the moment has passed.

To freeze action with your camera, you must set the shutter speed to be very quick. If your ISO is low, say 50 or 100, set your shutter speed to 1/500th of a second, 1/1000th of a second, or faster. Then let your camera recommend the aperture - it will most likely force your background to be out-of-focus with a large aperture. If your ISO is high, say 800, then you'll be able to set your shutter speed to 1/500th of a second without losing quite so much detail in the foreground and background (i.e. you'll be able to use a smaller aperture to get the right exposure). Shooting at such quick speeds allows you to get away with not using a tripod, since any shaking of the camera you do accidentally will not affect such a short exposure. So pick a sunny day, and go for it!

Implying Motion

The classic example of implying motion is those ethereal shots of rapids or waterfalls where the water looks like silk as it flows over the rocks, meanwhile the plants on either side are in sharp focus as the water passes by. Another example is traffic at dusk while the buildings at the intersection stand quietly in sharp focus. The subject is blurry while the background is sharp - this is what implies the motion.

The trick to capturing implied motion is to use a slow shutter speed. Speeds of ½ second should suffice to snap waterfalls or rapids, but be careful to decrease your ISO, or shoot at night, and don't forget your tripod.

Panning

Your daughter is riding her tricycle in a circle around you. You point your lens at her and pivot at the same pace that she circles you. Snap! This is an example of panning, where we create anxious and hurried moments by putting the moving subject into sharp focus while blurring the background. The best panning shots are captured when the subject is looking at you, and the eyes are in focus.

To successfully capture a panning shot, consider these three rules:

1) Make sure you move in parallel to your subject.

2) Choose the right shutter speed: somewhere between 1/60 second (for quick subjects), 1/30 second, or even 1/15 second (for a slow child, say)

3) Do NOT use a tripod - you must be free to move

Now you know the secrets to controlling motion on film. Get out there and try your hand at freezing motion, implying motion, and panning!

For more photography articles, please visit Jennifer Clarkson's website at http://www.jclarksonphotography.com. To learn more about the books in her eSeries on Digital Photography, or to promote sales, please visit the following sites:

Choosing your camera and accessories
Getting the Most out of your Camera's Basic Settings

Mastering Shutter Speed in Low Light Situations

With today's enormous variety of fully-automated digital cameras it can often be difficult to capture low-light indoor and action photos that are pleasing and successful. For example, pictures from a recent indoor family gathering might be full of red-eyed friends and relations and clusters of people brilliantly over lit by the flash. So, how does a photographer avoid this?

It requires the consideration of a few factors and settings on the camera to overcome some of the typical challenges of low-light photography. The first things to consider are the automatic features on a digital camera. Today's cameras want to help people take pictures with as little photographic skill or knowledge as possible, but the settings at work in the automatic cameras are not always suitable to each situation. For instance, if someone sets their digital camera to one of its automatic functions, such as motion or sports imagery, the camera may work to adjust the aperture to get enough light into the camera's sensor, but it will also slow down the shutter speed, rendering the image blurry.

Luckily, many cameras allow their users to go to a fully manual mode, meaning the photographer can set the shutter speed, f-stop and ISO. What do these settings mean? For any discussion of low-light photography the shutter speed is basically the way of allowing the camera to capture the action clearly, meaning that it will have to be as fast as possible to catch the image, but also slow enough to allow in adequate lighting. This is helped by adjusting the f-stop, which is the setting on the lens that allows enough light to reach the sensor. Additionally the ISO, what used to be called “film speed” for traditional photography, can allow for faster shutter speeds, but introduces something called “noise” into an image.

Noise is basically defined as the ability to distinguish the dots or pixels that make up the photograph, which is an undesirable effect in photographs. Adjusting the ISO is usually not recommended, but no discussion of photography would be complete without the recommendation for experimentation with settings on a camera in order to determine the results. Unfortunately, most modern digital cameras also create “noise” in their images with slower shutter speeds as well.

So, how do you take a good low-light photograph? There are many things a photographer can do to capture images in low lighting and the first is to make adjustments to shutter speed to see if this helps. The next recommendation is to work with a tripod if possible to allow for reduced camera shake; try adjusting the aperture to allow as much light inside the camera, and finally experiment.

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lens shutter is stuck!! Help???

ok so i fell & the lens has them two pieces that open & close to take pictures

well the ones jammed & wont close

anyone know how to get it unstuck??

need answers asap

10pt best answer
i dont wanta hear about takin it back
or to a professional
im askin for someone who had this happen before

thx

Here ya go. Good luck:
http://camerarepair.blogspot.com/2007/11/repair-of-stuck-lens-covers.html

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