Aerial photography was first practiced by the French photographer and balloonist Gaspard-Félix Tournachon, known as "Nadar", in 1858 over Paris, France. Since then winged aircraft and helicopters have been used. And now we have the very practical remote controlled aircraft.
With the invent of digital media everything has become so much easier and faster and so compact. Lifting fantastic cameras to the sky now is as moving the sticks on a remote.
What is definition?
Definition refers to a level of detail on screen that provides more fluid video and more vibrant colours. HD follows from standard definition - the level of detail in analogue colour TV that most of us grew up with, and never even thought about until someone told us it was just, well, ordinary. Technically, HD is defined by the number of pixels on the screen.
In the analogue TV days, all UK TVs used the PAL broadcast system, which used the standard definition (SD) of 576i. This is 720 pixels wide by 576 pixels tall. The more pixels on the screen, the higher the definition of images will be.
A pixel is the smallest visible element on a display, the ‘dots’ that make up the picture, although back, then, TV pictures were scanned line-by-line, and the width wasn't so important.
A 720p video (and a 720p monitor) is 1280 (wide) x 720 pixels (tall). That's more than twice the detail of standard definition straight away, and 1080 goes even further, racking up the pixel dimensions to 1920 x 1080 - that's five times more detailed than SD.
What is Ultra High Definition and 4K?
The Consumer Electronics Association (CEA) defines an Ultra HD television as one that displays at least 8 million active pixels, with a lower resolution boundary of at least 3,840 by 2,160. There are multiple varieties of 4K digital content ranging from 3,840 by 2,160 to 4,096 by 3,112, but the 3,840 by 2,160 resolution is the most consistent number we've seen and the standard resolution most UHD/4K HDTVs and monitors have settled on. It's a nice, even number, doubling the horizontal and vertical pixels offered by 1080, which itself became the standard for high definition.
Below we see how increasing the resolution - or number of pixels, increases the height and width of the image.
480 pixels high, to 720p to 1080p high definition. Then we arrive at 4K, where we double that number to find 2160 pixels high with approximately 4000 pixels wide which in some cases can vary depending on make and models of the cameras and monitors.
Understanding where your media will be presented and watched helps identify what resolution you need your video output produced at, dvd, blu-ray, TV screen, Internet video, powerpoint presentation, etc, these are factors which determine how media will be recorded and how they will be edited and produced. Please consult with us any further queries you may have concerning video output and print (photographs) output for your project.