Should I get a Camera with 1080p or 4k Video?
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The most important difference between 4K and 1080 is, of course, the issue of resolution. 4K is known as Ultra High Definition (UHD), whilst 1080P is simply labeled High Definition. This means that 4K UHD has a much higher resolution than 1080P HD video. 4K resolution is exactly 3840 x 2160 pixels, whilst 1080P consists of 1920 x 1080 pixels. The 4K name itself, refers to the almost 4000 horizontal pixels which are present. Resolution is labeled according to vertical pixels and in the case of 1080P, 1080 vertical lines make up that high definition resolution.
By comparison, 4K features 2160 pixels vertically which is a considerable increase in resolution. At a ratio of 16:9, 4K contains almost four times the number of pixels on a screen compared with 1080P technology – more than eight million pixels for 4K and just two million pixels for 1080P. This massive difference brings about some important advantages for 4K when compared to the quality of a 1080P video. There are a number of reasons why 4K is more popular than 1080P in terms of picture quality.
These reasons focus on the factors which enable it to resolve extra fine detail. The viewer is able to see this detail when seated closer than ever to the screen. From a production point of view, 4k is able to scale down the recording to regular HD and other formats while retaining the high contrast, highly detailed quality of the original.
What is a good Inexpensive 4k Video Camera?
You will need to search far and wide for a better budget camera than the AKASO EK 7000. It does not take great photographs, but the footage more than makes up for this. It comes standard with a remote control and 2.4G wireless device. When you are cycling, gliding, zip-lining or skateboarding, press the buttons on the remote while the camera is mounted to make shooting your photos or videos easy as pie.
Mount the camera with the included accessories to any position, and catch your every movement with the remote control. This camera comes with a charger as well as 2 rechargeable batteries, each of which can record up to 1.5 hours. The 2 inch LCD Display allows for Real time review so that you can take pictures and record the exact moment. This camera comes with a waterproof casing for up to 30m/100ft so that you won’t miss out on any interesting underwater shots.
You can also use your mobile device as a remote by simply downloading the App iSmart DV on your mobile device and then connect it to the camera’s Wi-Fi. Now you can recording or capturing photo or review them on your device with a Wi-Fi signal range of up to 10 meters.
What is a 4k WI-FI Camera?
Wi-Fi connectivity is one of the best features available with most new 4k cameras (click for the review). Most of these are sports action cameras which require you to install an app on your phone or tablet to make full use of the Wi-Fi function which lets you remotely view the feed from your camera when lining up shots. It also enables you to start and stop recordings as well as transfer files between your camera and other devices such as Smartphone or tablet PC.
Having a sports camera app on your phone makes viewing and capturing the best footage a lot easier and will provide you with an easy way to transfer your pictures and footage to a phone or tablet. This makes uploading your favorite clips to social media a breeze and you no longer need to sit down in front of a computer since it can all be done on the go from your Wi-Fi action camera app. In order to use the Wi-Fi on the action camera you will need to download and install the appropriate app on your Smartphone or tablet PC.
Of course you need an action cam that supports Wi-Fi and the necessary apps as well. The apps are usually available from the Google Play Store and Apple App Store, but you should always check for compatibility with your device before downloading or purchasing the app.
What is a Variable Frame Rate When Recording Video?
Variable frame rate (or VFR) is a term used in video compression for a feature supported by container formats which allow the frame rate to change during video playback. It can also be used to set an individual time code for each frame. VFR is extremely useful for creating videos and slideshow presentations since basically video is primarily just a series of stills. The frames move in succession at high speed, which is why we only see one moving image – this is called ‘persistence of vision’ and it is the key to all video / film.
The speed at which the deception from us seeing a bunch of still images flickering past to smooth motion varies dependent upon the scale but is roughly 15 frames per second (fps) for normal motion. Your average box shaped TV from your youth is set to 25fps and this ensures that things don’t look jerky during high speed scenes. Today’s resolution of 4K raises it again, and although you can watch it at 30fps it can look a bit poor quality – so really 60fps is better.
The one big drawback to shooting video for stills is the editing process. The 4K clips are massive when compared to raw still images. This means investing in bigger, faster memory cards, a faster computer, and most certainly more storage space. Most of the popular editing software out there, including Lightroom and Photoshop, can process 4k video clips, but the process is quite slow and time consuming. This means more time is spent on editing and less time shooting in the field.