Be The Expert Part 5: DSLR Cameras

DSLR Cameras

DigitalTrends reports that more manufacturers are moving toward making higher- end cameras, like DSLR cameras, to meet the growing demand for quality photography. In fact, according to LensVid.com, the DSLR market made up 28% of the entire digital camera market in 2015, and this number is expected to continue to grow as amateur hobbyist photographers as well as professionals tend to skip the mid-level cameras for the DSLRs. Here is everything you need to know about these increasingly popular devices in order to connect every budding photographer with the right camera.

The Basics for Good Cameras

The digital single lens reflex is the camera of choice for professionals and amateur enthusiasts who want a professional-level camera. There are more settings, choices, quality specs that matter, and manual controls than simple point-and-shoot cameras or compacts with fixed lenses or even super zoom lenses. When it comes to a high quality camera, a DSLR like the Canon 24.2-Megapixel EOS Rebel T6S Camera is the best way to get a professional level experience and result.

According to DigitalCameraWorld.com, the name single lens reflex refers to the reflex mirror that reflects light from the lens into the viewfinder. When the mirror is down, the photographer is able to see the scene to be photographed through the viewfinder. It flips up to allow light to reach the sensor and blanks out the viewfinder when the actual picture is being taken. This way, the camera can function with a single lens.

Megapixels and Sensors

Never trust a camera to produce high-quality images based purely on the megapixel rating. CNET.com asserts that almost every camera on the market has more than enough megapixels to satisfy any consumer need. Look out for cheap point-and- shoot cameras with high resolutions, because they probably don’t have the processing power to deal with these large images. With DSLRs, this isn’t a problem.

Another important spec is the sensor size, which is the size of the photoreceptors that actually create the pixels. The bigger the better when it comes to sensors, but that means a bigger (and pricier) camera. Sensors are measured in millimeters or with a label like “1/1.7-inch,” though that doesn’t represent an actual inch measurement. For instance, the Fujifilm 16.0 Megapixel FinePix S9900W Digital SLR Camera might have fewer megapixels than some compact digital cameras, but it will have a bigger sensor and higher quality parts and settings that produce a better final product.

Exposure and Angle of View

With DSLRs, photographers have the most control over exposure since they can manually adjust the shutter speed, aperture, and sensitivity. Enthusiasts can completely take control of these settings manually or can choose from a collection of “scene modes” as they are learning.

Aperture, or f-stop, is the size of the opening that lets in light. The larger the aperture, the lower the number. This controls the depth of field. Wider apertures give more control over the area of sharpness. The focal length of the lens controls the magnification of the image and angle of view, or, the amount of scene in view. The larger the focal length, the higher the “zoom,” and different lenses with various focal lengths for different uses are available for most DSLR cameras. For instance, the Canon 20.2-Megapixel EOS 70D Digital SLR Camera can be sold with a 18mm– 135mm lens, which has a long focal length and is good for sports or other settings in which a high zoom is necessary. Or, customers can purchase a shorter lens, like the EF-S 10mm–18mm f/4.5–5.6 IS STM Lens, which has a wider field of view and is perfect for group or landscape shots.

Shutter speed is conversely related to aperture to balance the exposure of the image. A higher aperture (or smaller opening—meaning more control of depth of field but less light entering the camera) will require a longer shutter speed that lets in more light. However, a longer shutter speed means less instant action captured and more chance of a blur. So, an action shot would require a faster shutter speed and thus a smaller aperture with a shallower depth of field. Another exposure setting is the ISO, or image sensitivity to light. In darker lighting, a higher ISO is required, but the higher the ISO, the grainier the image. However, cameras that are capable of producing an image at higher ISO settings will produce better images at lower ISO settings. For instance, a DSLR camera that can produce an image at an ISO setting up to 12,800 means you can expect a better image at a setting of 800 ISO than a camera with ISO capabilities only up to 6,400.

Aperture, shutter speed, and ISO work together to create the perfect exposure of an image. In fact, some modes can help control some of these settings while the user controls others in order to help create this balance for less experienced photographers.

Continuous and Burst Shooting

Another important spec to look for is the burst-shooting rate. The continuous shooting number is a measurement of the number of frames per second that a camera can capture. This is especially important for action or sport photographers. Since the frame rate will be related to the user’s shutter speed (and by association the aperture and ISO as well), keep in mind the reported frames per second rate may not always be accurate for every shot in every setting. For instance, the Canon 20.2-Megapixel EOS 70D Digital SLR Camera reports “high speed continuous shooting up to 7fps,” meaning, with optimum light and exposure, a photographer can shoot 7 frames per second.

Now that you know the basics, you’re ready to dive into the world of DSLR cameras. Check out all our high-quality digital cameras at www.petra.com!

 

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