 |
|
|
|
|
Bracketing and How To Use Tt Correctly...
What Is... Exposure Bracketing Exposure bracketing is a simple technique professional photographers use to ensure they properly expose their pictures, especially in challenging lighting situations. When you expose for a scene, your camera's light meter will select an aperture / shutter speed combination that it believes will give a properly exposed picture. Exposure bracketing means that you take two more pictures: one slightly under-exposed (usually by dialing in a negative exposure compensation, say -1/3EV), and the second one slightly over-exposed (usually by dialing in a positive exposure compensation, say +1/3EV), again according to your camera's light meter. The reason you do this is because the camera might have been 'deceived' by the light (too much or too little) available and your main subject may be over- or under-exposed. By taking these three shots, you are making sure that if this were ever the case, then you would have properly compensated for it. As an example, say you are taking a scene where there is an abundance of light around your main subject (for example, at the beach on a sunny day, or surrounded by snow). In this case, using Weighted-Average metering, your camera might be 'deceived' by the abundance of light and expose for it by closing down the aperture and/or using a faster shuter speed (assuming ISO is constant), with the result that the main subject might be under-exposed. By taking an extra shot at a slight over-exposure, you would in fact be over-exposing the surroundings, but properly exposing the main subject. Another example would be the case where the surrounding might be too dark, and the camera exposes for the lack of light by either opening up the aperture and/or using a slower shutter speed (assuming ISO is constant), then the main subject might be over-exposed. By taking an extra shot at a slight under-exposure, you would in fact be under-exposing the surroundings, but properly exposing the main subject. Now, most digital cameras have auto exposure bracketing, meaning that if you select that option before taking your shot, the camera will automatically take three shots for you: one which it thinks it has perfectly exposed; a second one sightly under-exposed; and the third one slightly over-exposed. When should you use exposure bracketing? Anytime you feel the scene is a challenging one (too much highlights or shadows) as far as lighting is concerned, e.g. sunsets are usually better taken slightly under-exposed so use exposure bracketing there, or whenever you want to be sure you don't improperly expose a fabulous shot. Remember, you are not using film anymore, so there are really no wasted shots (unless you are severely constrained by the size of your storage media). Digital Dodging & Burning Should you delete the extra shots right away? No, if storage permits, keep all three shots until you get home and upload them to your PC and into an image editing software, such as Photoshop. By using the layers functionality of Photoshop (or similar functionality of another image editing software), you can load all three shots into different layers and then carefully erase the under-exposed or over-exposed part of one or more layers to end up with a final shot where both the main subject and the surroundings are properly exposed! This Photoshop functionality allows you to shoot in very extreme lighting situations where there are many parts in different intensity of light and shadows such that you are losing details in the highlights and shadows. In this case, you might need more than two extra shots to obtain details in the different parts. Without moving the camera (a tripod is essential here), take as many shots as you need, exposing for the different parts you want details to be visible. Then you would load them all up into Photoshop, each into its own layer, and by erasing the under- and over-exposed parts in each layer (granted, this equivalent of film 'dodging' and 'burning' can be a very tedious and challenging task in itself, but done properly it can be well worth the effort), you can end up with an 'impossible' shot where every part of the cave is properly exposed. Used judiciously, exposure bracketing is a simple technique that can ensure proper exposure of a difficult lighting situation. Make sure you get a camera with good manual Bracketing control Canon PowerShot S70 - Bracketing control
MORE RESOURCES:
Google News |
|
|
|
RELATED ARTICLES
Panasonic Digital Cameras - The History Behind Their Cameras Panasonic is a world-renowned consumer electronics company today. Its digital cameras have recently entered the market. Picture Framing for Photographers - Part 2 There are two sources for obtaining the moulding for making a frame. You can firstly start with a straight piece of timber, and using a home routing system make your own moulding shape with a rebate to take the art work. Digital Camera Metering Looking at the most intricate details of the digital camera as a technologically advanced device a lot of functions come into play. Such s a point is that of the digital camera metering. Hyperfocal Focusing: What Is It And Why Should You Use It? When should you use hyperfocal focusing? Well, sometimes when shooting a landscape, you want everything sharp from the front to the back of the scene. Setting a small aperture such as f/16, f/22 or even f/32 can help, but if you really want to maximize depth of field, hyperfocal focusing is the technique you need to use. Is your Digital Camera Compatible With Your Computer? So you recently bought a digital camera or perhaps your thinking about it. And perhaps you may be wondering how many pictures will your computer hold? First you need to answer a few questions to come to an accurate conclusion. How to Buy a Digital Camera Are you buying your first digital camera? Well, you must be confused by the bewildering range of models out there. How do you know which model will suit your needs? To make things worse, digital cameras do not come cheap. Everybody is Fixing Their House or Apartment Up These Days. Use That Digital Camera to Capture That's right, you go through all the trouble of making your house or apartment nicer by hauling yourself off to the local fix it yourself store or hiring some professionals to come in and do it for you, so why not capture an accurate record of it for posterity. At almost no cost I might add. How to Easily Select the Important Photography Category for Your Home Based Business You may have already started to make money from your photography, but if you are still a gifted amateur, then there are effective methods you can use to kick start your chances of making a profit. At the present time there has never been more opportunities for the photographer. What You Need To Buy A Digital Camera Wholesale Digital cameras are available in several price ranges today. They can be purchased wholesale as well as retail. Stitching Memories Sometimes, usual photographs look so common and boring. Converting your pictures into charcoal or oil painting is a welcome change but then, a lot of people have been into these crafts already that there are times when these portraits too, look clichd. Take Spectacular Nighttime Photos with Your Digital Camera - Part II Night photos can take on a somewhat magical quality you may find lacking in normal daytime photography. Amazing night pictures certainly can attract attention. Online Photo Sharing: Not Just for Family and Vacation Photos You may have joined the photo-sharing craze to share your family vacation photos, but have you thought about other uses for photo sharing?Here are just a few ideas:Scrapbooking: Show off your creative projects. You can design scrapbook pages and enhance them with clipart using software like Paint Shop Photo Album or FotoFinish and then upload them to a photo sharing site for everyone to enjoy. Memories That Get Lost How many people have pictures in a shoe box? In a drawer? Inside a book? Sitting in the garage?Imagine 40 years from now. Someone will get those pictures and they will say: Who are these people? What are they doing in this boat?They won't have a clue about the stories that those pictures tell and they will probably throw part of your story away. Removing a Textured Pattern from a Scanned Photo - 5 Minute Digital Fix One of the most common problems when dealing with scanned photographs as part of a digital restoration activity is that after scanning, the digital image appears to have a textured pattern to it.This is often caused by the fact that the photograph in question has been printed on textured photographic paper. How To Avoid Or Reduce Red-Eye Photography with the aid of a digital camera is beyond doubt very fascinating. However, it also has many a nooks that the users of the digital camera must be aware of and also must be well educated to deal with in order to produce good photographs worth the most prized digital camera. Light Meter Readings for Film and Digital Reflected Light Readings for Film and Digital ImagesIn order to correctly expose your film or digital CCD there are two variables that must be identified: average reflectance and average light. Unless you have some good reason to meter for other than these two averages, stick meticulously to the method outlined below. Top 10 Digital Cameras - What You Need To Know About Them There are a large number of top 10 digital camera lists available on the Internet today. Each one of them is different and they all have different sets of criteria, on the basis of which these lists are compiled. Creating Personalized Photo Calendars About Personalized Photo Calendars:Photo Calendars are 12-month, wall-hanging calendars that you can create using your own digital photos and captions. As you customize your own photo calendar, you can start the calendar on whatever month and year you wish. Tips for Better Vacation Photos Photos are a great way to share your travel experiences with family and friends. Here are a few suggestions to help you capture vacation memories you will treasure for years to come. Terms Used The In The Stock Photography Business So you are a small business person or web designer and you want to purchase some stock photography for your website. Great.
|
| home | site map |
| © 2006 KeralaClick.com |