ComputerHunter.org |
|
|
|||
|
 |
The Advantages of Underwater Camera Housing
You will need an underwater camera housing to keep your valuable camera dry. This is a very important piece of equipment. When shopping for underwater camera housings, you may choose from single lens reflex (SLR) housings and digital housings. As a general rule, most underwater housings for compact digital cameras use externally mounted wide-angle lenses. These lenses are actually quite good for their low price and offer 100 degree wide-angle coverage and macro down to 1:1 (life-size) reproduction. Since these cameras have built-in zoom lenses, they are quite flexible and can be used for a large variety of subjects. Most of these lenses can be added or removed while underwater and therefore allow you to be ready for anything. Check your underwater camera housing to see how many feet it is rated (its maximum working depth underwater). Will the camera be adequately and safely protected during use in rugged environments? Does it have injection-molded plastic? Is it constructed to take the rigorous environments that underwater photographers and outdoor photographer's experience, and will it protect digital cameras in these demanding activities? Just as most underwater video manufacturers limit their design efforts to Sony cameras, the majority of still housing systems are built around the Nikon line. Although Canon has increased in popularity with topside professionals, few underwater housings are offered for Canon systems. For your underwater camera housing, you will want something durable. It should be made from machined aluminum, black type III 'hard' anodize finish, and sealed with a nickel-acetate process, have no sticking buttons or faulty electronic controls, use quality optics with clarity, sharpness and no vignetting (cutoff dark corners) to spoil your images. It should allow you to change lenses underwater from wide to macro with a MultiPort and include lighting options. Underwater Cameras Info provides detailed information on underwater cameras, including underwater digital cameras, underwater video cameras, and underwater fishing cameras, as well as underwater camera housing and cases. Underwater Cameras Info is the sister site of Disposable Cameras Web.
Google News - Top Stories
|
|
|
|
RELATED ARTICLES
The Photography Portfolio: Building Your Reputation If you have hopes of becoming a professional photographer, or even just of trying to get your work published in a public forum, you will need to create a photography portfolio. So what's so important about a photography portfolio anyway? 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. Alternatively you can pick from a large range of ready finished mouldings available from your local frame shop or hardware store. I recommend the latter. It's easier, the choice is much wider, and it's more cost effective. However, one word of warning. Always look for a moulding with a good straight back and not too flat on the surface. If the moulding has a bump or some raised section in the top surface it will cut and join easier than a flat moulding. Most mouldings are made from pine or obeche. These are soft grain timbers and cut and join well. Hard timbers like ramin are more difficult to work with. How to Shoot Video of Your Kids Sports Team So That Anyone Else Will Watch It! Break out that video camera, there is a game this weekend! 1. You bought a video camera 2. You want to shoot sports of your kid 3. Here is how to do it right! The Arizona Desert Museum The vast beauty and richness of the desert can be easily seen in one place in Tucson, Arizona. Known as the Arizona Sonora Desert Museum ["Desert Museum"], this gorgeous and convenient site is host to a cornucopia of plants, birds and animals native to the desert. Home to more than 300 animal species and 1200 plants in natural settings, it is a photographer's paradise. The Alligator Farm - Home to Beautiful Winged Creatures Your first thought when you read "Alligator Farm" might be "tourist trap," but that could not be more inaccurate. And while the alligators are wonderful and plentiful at the place fondly referred to as the "Gator Farm," it is the birds that attract the world's best photographers. What Should You Look for in a New Camera? These parameters are discussed at 2 levels: -Based on degree of functional use of available features -Based on the type of photography you want to attempt -->Based on degree of functional use of available features A person who is happy with his or her camera model usually responds with the following words of praise. 'Incredible ease of use' 'User-friendly controls' 'Intelligently and thoughtfully designed' 'Excellent value for money' 'Light and compact' These are the kind of terms that you will come across from camera owners who are satisfied with their camera models. These superlatives sum up what people usually look for or could look for at an overall level in their camera. It is a broad evaluation based on design elements, size and affordability. Before you make a decision to purchase you should explore a little further and study the type of features available to you. Unless you make the attempt to understand the features at your disposal, there is the risk of being stuck with a model that does not suit your particular requirements. Let's take a look at what features you should look for, as well as the features that you should be wary of when you choose a camera system. -->Features to Look For 1. The lens is by far the most important device in your camera. The quality of the lens ensures the sharpness of your image. The camera lens is described by length (given in mm), known as the focal length of the lens. 50mm is the standard focal length in a lens. A lens of shorter length is known as a wide-angle lens and is used usually by landscape photographers. A lens with focal length greater than 50mm is called a telephoto lens and is especially useful to professional photographers in capturing distant images. There are also cameras with a zoom lens. A zoom lens can offer various focal lengths, so you have a lens capable of many focal lengths. Simple put, when you use a zoom lens you can make your subject bigger or smaller within the frame. For instance, a wide-angle zoom can cover a range of focal lengths below 50mm, or a telephoto zoom gives you a range of higher order focal lengths. Some superior zoom lenses can take you from wide angle to standard and through to telephoto ranges. The power of the zoom lens is defined by the extent of magnification from a lower focal length to a higher end and is given as 2x, 3x and so on. Some lens tips: --A 50mm or 100mm lens is considered adequate for most non-professional hobby users. The professionals usually go for telephoto lenses of 200mm or more. A lens with higher focal length costs a lot more. Most beginners don't need to invest in a telephoto lens. --Check if your camera is compatible with the range of lenses that the manufacturer of your model has on offer. Most manufacturers have hundreds of lens options on offer and your requirement for lenses varies as you progress in photography. Your camera has to be compatible with lenses of higher focal length and speed. If you are planning to upgrade your camera by buying another model from the same manufacturer, check for compatibility with older accessories so that you can put to use some of the lenses already available with you and save yourself an additional expense. 2. Depth-of-field preview button A depth-of-field preview button is a necessity if you want to achieve better focus. It allows you to identify the area that will be in focus in your photograph. This area is referred to as the 'depth of field'. When you adjust the focus in your camera the preview button is a useful tool that can help you vary the focus and depth of field in different shots. 3. Image sensor resolution In digital cameras, there is no film in use but this is instead replaced by a device called the image sensor. The image sensor renders colors, is sensitive to light and is the device that captures images in small pixels on its surface. Image resolution is a measure of the sharpness or level of detail in photographic images. Image resolution is expressed as a number and is measured in mega pixels. High-end professional use cameras have an image sensor resolution of around 12 mega pixels and the most advanced professional models go up to almost 14 mega pixels. At the mid range you have camera models with resolution ranging from 2 - 6 mega pixels. To deliver large format prints of superior quality, you should go for models with resolution greater than 3 mega pixels. At the lower end, you have models of 1 mega pixel or less and the sharpness of the photograph is slightly inferior compared to cameras with higher values of image sensor resolution. Lower pixel models are best suited for small format prints. 4. If you have the facility for Auto-bracketing it can be a very useful tool. Auto-bracketing enables the camera to automatically take 3 exposures or in some cameras 5 exposures of the same shot by varying the Exposure Value (EV) to lighten or darken an image. Each of the images will be slightly differently exposed and this is a great tool to ensure that you capture the moment perfectly. You can bank on at least one being a properly exposed picture. This tool comes in handy especially for professional photographers. 5. If tonal quality of the photograph is your top priority when you choose a camera then it is best that you go for a digital camera. Photographic prints of scenes captured on a digital camera have a level of tonal quality that is far superior to best quality traditional prints. 6. There are sophisticated camera models available today that can capture movement and audio-visual images. If you want to go beyond static images and capture the first steps of a child or activities during family get-togethers, then you should look for a camera with these advanced capabilities. It will create a better experience when you go down memory lane. The Kodak Easyshare LS753 Zoom Digital Camera is one such model that offers audio-visual capability. Get Closer to Your Subject Almost any shot will look better if you take two or three steps closer to your subject. Filling the frame entirely with your subject will make a terrific difference to your photos. Let Those Digital Photos Out! (You Don?t Have To Print Them Yourself) What have you done with the photos you've taken with your digital camera? Hands up if they are languishing on your hard drive waiting to be printed. If your hand is up you are not alone. Well I have my hand up too! But I've promised myself that two years worth of digital photography will see the light of day before Christmas. Photography - Rules of Composition Composition is defined as the combining of distinct parts or elements to form a whole. In photography that definition is very important in taking quality pictures. The following rules of composition should be learned and considered but not necessarily used in every photo. Once you have learned these rules you will be more observant of the possible photo opportunities that surround you. But keep in mind that the really famous photographers usually find a creative way to stretch or break the rules of composition. Digital Camera Interpolation Explained In a device such as a digital camera it is very important to understand the very basic aspects of the device so as to properly operate it and give it the due respect it deserves. Such a topic is interpolation! These are accessories that help the digital camera to perform the technologically advanced features that it is capable of. In extreme explanatory and simple terms it can be summed up as that interpolation refers to software programs that can effectively enlarge image resolution beyond the actual resolution by adding extra pixels using complex mathematic calculations. Now, this is a feature that can be absolutely useful in providing a good success to a user. Photography 101 Part 2 Basic Composition Start Up a Nude Photography Business There are major obstacles to overcome to get into nude photography, not least of which is the need to practise technique. By its very nature there has to be at least one subject, and the big problem for the photographer here is image. To some the image of nude photographer is tied in with the "dirty Macintosh" brigade, with the false wig and dark glasses. Imperfect Photos And How You Can Fix Them So your picture came out less then perfect. Blemishes or wrinkles, red eyes and wrong color balance - you can fix it all without having to learn or pay for Adobe Photoshop. Try these tools instead. Digital Cameras and Digital Photography Before you rush into buying your digital camera this holiday season make sure your properly informed. Many consumers during the holiday season rush into purchasing electronic equipment in a mad panic to get that high end gift for their loved one or spouse. Tame Those Memories Family vacations, summer weddings and family reunions are in full swing, and the warm memories and envelopes of photographs are ever growing! You certainly intend to organize them -- but the boxes in the attic are full of intentions, and now the photograph CDs are being to pile up! What can you do to stop the madness? Digital Camera Auto Exposure and Auto Focus The digital camera being a fantastic and technologically advanced device contains many different applications of its own. Many users of this fabulous device are unaware of quite a few of these functions which can actually do wonders. And it is the duty and right of every person possessing the digital camera to intervene into the depths of knowledge to understand their prized possession and their varying qualities in order to foster the true respect that this device deserves. This article deals with providing information regarding one those qualities - Auto focus and auto exposure! Photographs Everywhere, But Is It Really Art? I once heard a lady say to a photographer that she would have bought his work if it had been a painting. She liked the image, but for whatever reason didn't consider the medium suitable for her "it's just a photo". Photography - Things to Consider Before Buying a Camera Before you are able to take the kind of photos you want to take, it is important to think about the equipment you would like to start out with. Probably the most important decision you will have to make is what kind of camera to buy. There are so many options and brands now that the whole process can seem quite overwhelming. Tiny Cameras, Big Pictures and Make Your Photos Great! The path to picking a digital camera usually leads to a fork in the road. On one side is the small camera that's convenient to carry but doesn't take the sharpest pictures; on the other, a camera that crisply catches all the details and color but is comparatively bulky. Sometimes it's our fault that our photos didn't work out; we didn't notice distracting, extraneous objects in the image or forgot to ask for a certain pose. Sometimes it's the camera's fault; as impressive as many of today's cameras are, they're not perfect. And sometimes it's no one's fault; some lighting situations are just plain impossible to control. Sepia Toned Prints from Your Colour or Black and White Photos ? 5 Minute Digital Fix Quite often I will have clients bring in old photographs of their "elder" relatives that were taken before colour photography was around.
|
|
|
|
|
