Digital Single Lens Reflex camera also known as DSLR emerged in 1990s but became popular after the year 2000. DSLR is a digital still image camera that uses single lens reflex (SLR) mechanism.
In simple words in DSLR the picture you see from the view finder reflects from a single lens; hence you capture exactly the same image you see. There are plenty of reasons to buy a DSLR; they are- it gives you advance shooting options, superior optics, robust manual controls, faster performance and most importantly changeable lenses. All this reasons are enough for you to buy a DSLR the only drawback of buying DSLR is the cost you have to pay for it, initially you can afford to buy a DSLR but you have to keep investing in buying new lens but the photography experience with a DSRL is worth the price you pay. Here are the most important aspects to consider when you're shopping for a digital SLR:
Megapixels: Most of all of us think that higher the megapixels higher the image quality but this is just a myth. If you are just looking for a high megapixels then why to buy a camera for it you can get high number of megapixels in a mobile phone too. No doubt you have to consider the megapixels of the DSLR you are buying as it is beneficial for you when you have to crop or zoom in the picture.So keeping megapixels in mind is must but see to it that you don’t give importance to only megapixels, see the other functions too before buying a DSLR.
Sensor Size: Even if a camera has low megapixels the image quality can be best if you purchase a camera with larger sensor size and lens quality. Bigger sensor size gives you stunning higher quality images. Consider two or three options in DSLR and then check the sensor size, opt out to camera having larger sensor size.
Image stabilizer: In easy words image stabilizer means anti-shake, this option helps you to take images even if your hand is shaking a bit as you cannot carry your tripod everywhere. Most of all DSLR comes with Image stabilizer while some needs a special, and expensive, anti-shake lenses. So make sure you buy the one which has a in-built Image-stabilizer
Choose anti-dust DSLR: Removing the lens exposes the camera to dust. See to it that the DSLR you buy has anti dust-mode which will help to keep the image sensor clean.
LCD display option: Before it used to be that DSLRs didn't allow you to view your subject in real time on the camera's large LCD display. But now you do get an option of choosing your DSLR with LCD display.
Reviews: If you are still confused whether which one to buy, try to find out reviews of other users. You can ask your friends or best would be to take suggestion of a professional photographer. Out of curiosity don't buy your DSLR in a hurry, take opinions of your friends, experts, and read customer reviews from online sites.
Choose a Camera that is comfortable: Buy a DSLR which you feel is perfect for your hands to hold. You should be very comfortable in holding the camera you buy or else you won't be able to enjoy your photography. While most D-SLRs are similar in size and build; the styling of the handgrip, position of controls, can differ.
Lastly try before you buy your DSLR it will make it easy for you to decide.