In this article, we will try to understand what the pixels, megapixels and digital image resolution. And whether megapixel camera is an important factor in deciding which camera should you buy?Pixels and Megapixels
A digital picture is made up of millions of tiny dots called pixels (pixel). Pixel itself is derived from the word stands for Picture Elements. Each
pixel carries information that determines the color (hue), the power of
the color (saturation) and how bright the colors display (brightness).
Because
almost all the photos consists of millions of pixels (1 megapixel = 1
million pixels), then our naked eye can hardly recognize anymore a pixel
separately, which is a unified whole visible images with subtle
gradations between light and dark, color and tone shift .
If you want to see a pixel, occasionally try to resize the image resolution due. Like the photo below, this photo has a size of 600 × 450 pixels resolution. Diukuran is fairly small as we still can not see a pixel, all looks fine and smooth.1 megapixel pixel resolution
But by changing the resolution to 100 × 75 pixels, we can begin to see how the pixels composing a photo:
Pixel resolution of 2 megapixels
Especially with the low resolution 40 × 30 pixels, each pixel box will start to look like arrangement puzzle. We can see the pixel by pixel - this phenomenon is commonly referred to pixelate:
3 megapixel pixel resolutionResolution Pictures To Print and Screen Monitor
Resolution
of a digital image is measured in pixels per inch (ppi - pixels per
inch), and the standard for quality picture resolution is 300 ppi. So
if we know how many megapixels owned a digital camera, we can find the
optimal print size for images produced with the camera.
For
example, we assume a digital camera that has a resolution of 6
Megapixels (MP) to the exact size is 2816 pixels (length) x 2112 pixels
(width) - bringing the total to 6 MP. To
calculate the optimum print size that can be produced for our camera
2816 x 2112 pixels with 300 ppi and the result is 9.5 and 7 inches. So a digital camera with a resolution of 6MP can produce print images with the size of 9.5 x 7 inches or 24 x 18 cm.
To
screen monitor, a standard used is 72ppi (Windows) and 96ppi (Mac), so
tampilah on the screen is actually far less than the standard for print
resolution (300 ppi). The
meaning is, a photo that still looks good on the monitor is not
necessarily a good time in print, but a picture that starts to look
pixelate when printed at 300 ppi may still look fine on a computer
monitor.Table Megapixels vs. Print Size A Photo
Below is an example of how the table optimum capacity of your camera produces a photo printed at 300 ppi or 200 ppi. In
general, the average digital camera now (which began approaching the 24
megapixel resolution), has the ability to print much larger than the
average needs of the wearer. Unless
we really want to make a giant poster size is set at 200 ppi, our
cameras are rarely used for this ability to produce print photos, let
alone we usually just staring at a picture on a computer screen. Size
megapixels a camera is not the most important factor when you want to
buy a camera (see 5 considerations before buying a DSLR camera).Camera Size Print (300 ppi) Size Print (200 ppi)6 Megapixels 24 x 18 cm (9.5 x 7 in) 36 x 27cm (14 x 10.5 in)7 Megapixel 25 x 19 cm (10 x 7.5 in) 39 x 29cm (15.5 x 11.5 in)8 megapixel 28 x 20 cm (11 x 8 in) 42 x 30 cm (16.5 x 12 in)10 megapixel 33 x 20 cm (13 x 8.5 in) 49 x 33 cm (19.5 in 13)12 megapixel 37 x 24 cm (14.5 9.5 in) 55 x 36 cm (21.5 x 14 in)
A lens that we see on the outside will be composed of a main section that looks like this:
