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Pick the best camera for the job

There is no one perfect camera. But if you need a camera suited to a specific kind of photography, you can get the best camera for your needs by looking for specific features. Obviously, it’s not practical to buy and carry a separate camera for every possible shooting situation, but if you regularly shoot in low light, carry your gear into harsh conditions, capture portraits, or prefer to travel light, then it’s worth buying a camera tailored to your needs. Keep in mind that most of the features we mention can be had with point-and-shoot cameras, through manual controls, but a few are available only on DSLRs or compact interchangeable-lens cameras.

Low-light photography

If you like to shoot subjects in low light—whether a dark alley, a dimly lit house, the night sky, or a performance in a darkened auditorium—you’ll want to look for certain features when shopping for a camera.

First and foremost, you need a camera that supports high ISO settings without yielding images that contain a lot of noise. Be sure that images shot at ISO 800 to 1600 are free of speckles or splotchy color patterns.

High ISOs let you use fast shutter speeds, so you don’t have to worry about blur when doing handheld shooting. You’ll also be able to freeze moving objects. To give yourself even more latitude with shutter speed, look for a lens (or a camera with a lens, if you’re buying a point-and-shoot) that has a “fast” lens—that is, a lens whose maximum aperture is very wide. An f/2.4 or lower maximum-aperture setting will allow you even faster shutter speeds. The $500 Olympus XZ-1 point-and-shoot camera has an impressive maximum aperture of f/1.8.

A camera or lens with image stabilization won’t help you freeze motion, but it will help ease the effects of camera shake, often making it possible to shoot sharp images that would be impossible to achieve with an unstabilized lens or camera.

If you’re interested in low-light landscape shooting with a DSLR, then you’ll want a camera with a mirror lockup feature, which helps reduce vibration during long exposures. Many Canon DSLRs have this feature, including the $900 (with lens) EOS Rebel T3i.

Many new point-and-shoot cameras (as well as the iPhone 4 and iPad 2) use backside-illuminated sensors, which usually capture more information in low-light situations. But a more useful point-and-shoot feature is a handheld low-light mode. Sony’s cameras call this mode Handheld Twilight, and Canon’s HS line calls it Handheld NightScene.

Rugged shooting

Bad weather can ruin your whole day and really screw up your camera. Even if you don’t shoot in extreme conditions, there might be times when you need to think about the durability of your camera. If you like to snap shots of your kids around the pool, if you tend to regularly visit dusty climates, or if you shoot in extreme heat or cold, you may need a camera made to withstand the elements.

Most cameras are actually more durable than you might think. Light rain, a few splashes of water—these most likely won’t hurt your camera. But if there’s a chance that you might submerge your camera, or get trapped in a serious deluge, shop for one that is fully waterproof instead of water-resistant. Most waterproof cameras are rated to at least five meters of depth, which is good enough for most casual water-related shooting. If you already have a camera, then you can opt for a waterproof enclosure, which can let you go even deeper underwater.

Some cameras are fully sealed to protect them from water (but not submersion) and dust. For shooting in deserts or in other places where the air can get thick with particulate matter, using a weather-sealed camera can prove essential. Note, though, that on DSLRs, these seals are only as good as your lens mount. In other words, if you put on a lens that’s not also sealed, then your camera will not be protected.(Image Caption: Pentax K-5)

If it’s not weather but rather wear and tear that you’re worried about, consider a shock-proof camera, which is optimized to withstand dropping and even crushing.(Image Caption: Sony Cyber-shot TX10)

The $1700 Olympus E-5 DSLR camera is splash-proof and dust-proof. The $1600 Pentax K-5 is weather-sealed and built around a stainless-steel skeleton. The point-and-shoot market has some cool (and far more affordable) rugged offerings, like the $350 Pentax Optio WG-1 or the water-, dust-, shock-, and freeze-proof $320 Sony Cyber-shot TX10.

Landscape photography

Typically, when you shoot a landscape scene, you want deep depth of field, to ensure that everything in the scene is in focus. Fortunately, any lens or camera will be able to stop down to a small aperture to get deep depth of field. Obviously, if you want to shoot in low light, then you’ll also want good high ISO performance.

A sharp lens is important for preserving detail, and if you’re working with a DSLR, note that the smaller its image sensor (as opposed to full frame), the deeper depth of field it will yield. Ultimately, small camera size might be your biggest concern—for example, if you’re heading deep into the backcountry and want to keep weight down.

Portraits

For portraiture, you’ll want a fast lens, which will let you capture shallow depth of field, to blur out backgrounds. You’ll also want a lens that’s slightly telephoto. The kit lenses on most SLRs and point-and-shoot cameras will definitely provide a slightly telephoto focal length that will be ideal for portraiture. A slightly longer lens compresses features, to produce a more flattering look.

Look beyond the specs

Knowing the features you need for the types of photographs you want to capture is a great first step in buying a camera. But keep in mind the many other factors that make a camera great, good, or just OK. Macworld Lab does extensive image testing on point-and-shoot, compact interchangeable-lens, and DSLR cameras. See the latest full reviews at Macworld's Digital Photo channel.

Senior Contributor Ben Long is the author of Complete Digital Photography, sixth edition (Cengage, 2011).


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