An SLR or single lens reflex camera consists of a camera body and one or more detachable lenses. It’s called SLR because its viewfinder uses the reflection of a 45o angled mirror to let you see your object through the camera’s lens while composing your picture. SLR designed cameras tend to deliver more precise and colorful photos because it usually offers a better lens, more extensive manual controls and larger sensor size. Its internal processing is also faster than other camera’s thereby providing quicker response. The biggest advantage of SLR cameras is the ability to select the best lens depending on what you plan to shoot and also allowing the attachment of specialized lenses. Its degree of versatility is unmatched in comparison to other cameras.

Apart from the common features like pixels, optical zoom and the size of the LCD, it’s important to know some of the specification in order to have a good SLR camera.

Sensor Size - Generally sensors that are large in size capture tiny highlights or shadow details better than sensors that are smaller sized but having the same megapixel count. So if you want the most out of your camera, check for the sensor size and megapixels.

Lens mount – It’s also advisable to find a digital SLR that will work with specialized and older lenses. This will provide you with a lot more options for photography.

Kit – Many digital cameras provide you with a kit which includes the camera body and a lens for you to start off with. Look out for such type of digital cameras.

Image stability – It minimizes the effects of a camera shake to give sharper pictures. It is a highly useful feature which is available to SLR users in two forms

• As a part of the lens attached to the camera
• Built into the body of the camera

Continuous shooting mode – This is a useful feature which allows you to press and hold the cameras shutter button in order to capture a series of photos in quick succession.

Memory - Like most digital cameras, digital SLRs use removable flash memory cards, such as memory sticks to store digital photos. If you already own some memory cards, then choosing a SLR that uses the same type of memory card can make your selection more cost effective and save you a few bucks.

Built-in dust reduction system – While changing lenses it is impossible to prevent dust from accumulating on the sensor. Some SLR digital cameras have in-built dust reduction system which gives us clean and spot free images.