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How DSLR camera is better than normal Smartphone
What is Megapixel?
A megapixel means one million pixels. A one megapixel camera will produce an picture roughly 1200 pixels wide by 900 pixels high. The resolution of digital cameras and camera phones is widely measured in megapixels. For instance, a 8-megapixel camera can produce images with 8 million total pixels.
Clearly,the megapixel rating is that the total number of pixels which will structure and image captured by a camera sensor. to get the entire number of pixels, you merely multiply the amount of horizontal pixels by vertical pixels. as an example , a 3008 x 2000 sensor in my Pentax K100 DSLR equates to 6 megapixels.
Need of Megapixel:
➽There are only a couple of occasions once you really need super-high-resolution photos. Even over 16 megapixels can finely shoot covers and two-page spreads for glossy print magazine.
➽If you propose on sending your photos to professional printing houses for giant (think 2 feet to a side), expensive, high-quality prints you would possibly want 24 megapixels.
➽If you are a professional fashion photographer, or somebody else who shoots images designed to seem beautiful plastered life-size on the walls of boutiques then 30+ megapixels could also be right for you.
PROS AND CONS OF MEGAPIXELS:
➽Many Smartphone Companies now producing more megapixels into their products. But does it produce better pictures?
➽The Answer is No. Image quality isn't improving.
Pros:
➽Photos with more megapixels have more detail.
➽More flexibility in post-production.
➽Easier cropping, retouching and compositing images.
Cons:
➽Large file size.
➽It can take longer to transfer or send.
➽It can consume more storage space.
What is Sensor:
➽A smartphone camera image sensor is a solid-state device which captures the entire light that enters the camera through the lens and forms a digital image from it.
➽The surface of a sensor contains many photo sites also referred to as pixels which are liable for capturing the sunshine . the entire number of those light-capturing elements is understood as megapixels.
Sensor matters:
A DSLR is in a position to require more accurate pictures because it uses lenses and sensors that are larger than the smartphone. Because the DSLR can absorb more light from the environment than the smartphone, it generally takes better pictures even though it has a lower overall megapixel count.
A typical consumer DSLR features around 15 megapixels or more and therefore the Nokia Lumia 1020 smartphone has a fantastic 41 megapixels in its tiny body. Does this mean that the Lumia will take better pictures than a DSLR camera? Obviously it won’t due to other factors but it's important to find out how a camera’s sensor and number of megapixels can impact your photos for better or worse.
They tend to means more grain in low light and emphasize motion blur and focus errors.
Types of Sensor:
There are two kinds of sensors which will be found in digital cameras: the CCD and CMOS sensors. They’re both accountable for converting light into electric signals but they work differently.
The CCD (Charge-Coupled Device) sensor is that the more traditional sensor. It’s an analogue device that captures a picture in round and converts it into one sequence of voltage.
A CCD sensor performs well in low light and doesn’t suffer the maximum amount from digital noise as a CMOS sensor.
Generally the CCD sensor cost too high and uses tons of power.So it is not very popular in smartphone cameras.
CMOS (Complementary Metal-Oxide Semiconductor) uses less power than CCD, which makes it ideal for mobile devices.
This sensor doesn’t capture a whole image during a single shot but rather captures images during a scanning type of way.
But there is a problem in the rolling shutter effect, where the image gets skewed when the sensor tries to interpret a moving object. this is often a problem that’s most problematic when recording video.
Smartphones almost universally use CMOS sensors. only a few use CCD recently.
Pros:
➽A larger sensor provide you to create background blur.
➽Dynamic range will be increased with larger image sensors.
➽Larger sensors result in improved low-light performance.
➽Larger sensors ultimately provide higher resolution.
➽Larger sensors reduce the crop factor.
➽Larger sensor helps in less diffraction.
Sensor Vs Megapixels:
If you are doing tons of printing, shoot during a studio or want landscapes with exceptional detail, a high-resolution camera is a clear choice.
On the opposite hand, if you’re trying to find good low light performance and improved video performance, then the lower resolution camera might be a far better choice for you.
Interesting Fact about Image:
Higher the megapixel count, larger is that the file size. rather than using compression to scale back image size, companies now use pixel binning technology. In this latest technology, pixels are combined to make a much bigger pixel size, which brings down the effective megapixel number and reduces the dimensions of a picture with none visible quality loss. Usually, a 4-in-1 pixel binning technology is employed in smartphones that put together four pixels to make one pixel.
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