The different RGB standards for analog component video (e.g. RGBHV, RGsB, RGBS) make use of no compression with imposing no real limit onto the resolution or color depth. However, these need large bandwidth towards carrying the signal. These comprise of much redundant data as each of the channel in typicality includes much same image in black and white. Most of the modern computers give this signal through the VGA port. Several televisions, particularly in Europe, make use of RGB through SCART connector. The all arcade games, apart from earlier vector as well as black and white ones, make use of the RGB monitors.
The analog RGB gradually loses its popularity because computers get superior clarity by way of the DisplayPort or the Digital Visual Interface (or DVI) kind of digital connections. The home theater systems popularly favor the use of High-Definition Multimedia Interface (or HDMI). This can be because the analog connections are difficult to be made for supporting the digital rights management. The RGB is never seen common within North America towards the purpose of consumer electronics because the S-Video was regarded enough for the purpose of consumer usage. But, the RGB was widely used for high-end, commercial and professional installations. This would give you an exact idea about it.
Apart from the color signals of red, green and blue, the RGB needs two more additional signals for synchronizing the video display. Many methods are applied -
- The composite sync, wherein the horizontal as well as vertical signals get mixed together using separate wire (indicated by the S within RGBS).
- The separate sync wherein the horizontal as well as vertical each have their own wire (indicated by H and V within RGBHV).
- The sync on green, wherein the composite sync signal gets overlaid on wire used for transporting green signal (indicated by RGsB or SoG).
- The sync on red or the sync on blue, wherein the composite sync signal gets overlaid onto the red wire or the blue wire.
The composite sync commonly finds its application for European SCART connection scheme. At times the entire composite video signal gets used for giving sync signal. Mostly the TVs would interpret it correctly. However, often the computer monitors would not be able to handle this addition video data. Due to this they would not display images correctly (or at times not at all). The full composite sync video signal needs four wires. These are – red, green, blue as well as sync. In case separate cables get used, then the sync cable usually is colored in yellow (as in the composite video standard) or white.
The separate sync most commonly finds its application to VGA that is world-widely used for the analog computer monitors. It is sometimes called RGBHV because the horizontal as well as vertical synchronization pulses need to be sent within separate channels. Such a mode needs five conductors. In case separate cables get used, then the sync lines generally are yellow and white, yellow and black, or gray and black.
The Sync on Green remains less commonly used. Some of the VGA monitors tend to support it, but most do not. It is interesting to note that Sony remains a large proponent of the SoG. Mostly their monitors (plus the PlayStation line involving video game consoles) make use of it. Similar to devices using the composite video and the S-video, the SoG devices need more circuitry for removing sync signal through green line. The monitor which is not equipped for handling SoG would display the image with extreme green tint, in case any image is formed at all, when provided the SoG input. This way you can analyze this concept properly.
The sync on red and the sync on blue remain even rarer in comparison to the sync on green. These typically find their application just for the particular specialized equipment.
Amazon has recently announced that its Cloud Drive App is available to download for Windows and Mac users. This app was previously available for Amazon Cloud Drive Website. Now, anyone can use it.
Installing this application is quite easy. You need to use your log-in info of Amazon to do it. If you don’t have an account over there, get the one before going ahead. It takes few minutes for this application to get installed. You will find a small cloud icon on your desktop after the completion of this process.
Amazon will give you quick tour about the way you can use this application after the first launch. It is quite easy to use the application. You don’t need to be a tech savvy to master it. Storing and sharing files, videos, and photos can become really easy with it. Moreover, you can do a host of works without even visiting the main website.
The whole function of storing and transferring files from one location to the other is still done on the websites. But, the process can become easily through a pop-up menu. The pop-up menu coming before you during the use of this application is really cool.
Other than being perfectly user friendly, this application is also quite fast. You can easily do many of cloud functions like dragging the file to different folders among others. All you need to do is to right click the desktop icon to see the possibilities.
The application fully supports the amazing cloud service of the Amazon. Needless to say here, this cloud service is free up to 5GB. The application is also freely available for both Windows and Mac users.
This application is worth recommending for anyone who is using Amazon Cloud Service. You can access all of your files through your desktop. Your files are still easily accessible through the main website, but drag and drop features with contextual menu options make it a must-have.
The digital Single Lens Reflex (SLR) camera is a great revolution in the arena of photography. It provides impeccably clear and accurate images. You can experience high quality photographs with it. Professional photographers are increasingly relying on it to create amazing effects in their photos.
Difference with the traditional digital camera
What differentiates an SLR camera from other digital camera is optical viewfinder. It is the lens with the help of which you frame the image and then press the button to shoot pictures. Pentaprism, a specially crafted glass prism is used in it. Similar like other cameras, first light goes through the main lens and then reflects back on the mirror; here pentaprism comes into the picture. It corrects any left-right and up-down image reversals that the main lens can produce. It shows the image with exact borders. It means to say, during the shooting you are going to see only those stuffs which will ultimately come on the photos. Without viewfinder a camera usually creates problems with the border. You can also better understand the requirement of the right kind of lighting with SLR camera. The optics used for viewfinder is relatively large. The ubiquitous and portable point-and-shoot camera can’t accommodate this size of optics. LCD screens are extensively used with point-and-shoot camera which is rare with SLR.
The optical arrangement made in SLR makes it different from traditional digital cameras. Because of this type of optical arrangement, an SLR camera usually comes in bulky shape.
Modern cameras come with a charge-coupled device (CCD) which transforms incoming light into electronic impulses. These electronic impulses are then used for photography. CCD consists of a grid type silicon chip where light-sensitive elements are placed. The use of these light-sensitive is crucial for the quality of an image. You can get a better and more detailed image if the element of the chip is smaller. The CCD used in SLR camera has larger surface and smaller light-sensitive elements. It improved the overall resolution with less noise which helps in producing quality images. CCD is also used in point-to-shoot digital camera, but SLR has better quality.
A DSLR camera also known as a Digital Single Lens Reflex camera is an object mostly used by professional photographers for wildlife and fashion photography. A Point and Shoot camera on the other hand is a more robust and lightweight alternative for some people who love the convenience of high quality photography in a light package when compared to a DSLR.
Many photography purists think a DSLR lets you obtain the original image in its entirety as compared to a Point and Shoot camera. Moderate camera users who only use a camera on certain occasions think a Point and Shoot camera is much more preferable due to its convenience. They are extremely light in weight and are becoming more advanced and packed with features. The choice between choosing one over another is usually determined by the nature of the subject which is to be captured.
Megapixels are NOT everything. A DSLR with 8 MP can perform better and reap better quality shots than a 10, maybe 12 MP Point and Shoot camera. The main reason is that it depends on the amount of image sensors in the camera, which is usually 20-25 times more in the case of a DSLR. Also DLSRs produce much lesser grain in the photos at slower ISO settings which support better quality photos in limited light environments.
Flexibility to swap lenses from nearly 10-15 lenses options helps DSLR gain a serious advantage; also if the lens is damaged, it can be easily replaced. Better image quality and higher speed of capture provides a wider scope to capture the perfect shot and choose between many options.
With the option to use telephoto lenses on a regular DSLR model just by replacing the lenses, it becomes easy to gain hard to obtain shots where the subject in the picture is unapproachable. Also, some users feel that if you have invested heavily in a selection of lenses, they are supported on other camera models of the same brand, which gives a better investment value to them.
On the other hand, Point and Shoot are really inexpensive and sometimes people choose rugged versions of the camera for a more adventurous experience. While some people will continue their affections towards DSLRs, others will keep their Point and Shoot cameras ready for a quick snap; a few howeve will keep both.
Entertainers use “Lavalier microphones “to cover the use of a microphone. The lavalier microphones are designed to attach on a person’s clothing in place of a usual handheld microphone. They are totally wire less. You can use it very easily because it is a hands free device.
Use of a Wireless Lavalier Microphone:
We can also call a lavalier microphone as lavalier, lav and the lapel Mic. A wireless Lavalier microphone is a tiny microphone, which is using in different places such as television, and public speaking applications, theatre for the hands-free function.
Function of a Wireless Lavalier Microphone:
It is normally provided with the small clips for collars, ties and other types of clothing to attach. Usually the cord is hidden in clothes to run the radio frequency transmitter in a pouch or cab be clipped toward a belt (used for mobile work), or directly to other things it requires the mic should be placed of the person’s mouth.
Types of the Wireless Lavalier Microphones:
There are two most important kinds of the the wireless Lavalier Microphones which are as under:
1. Omni Directional Lavalier Microphone:
It allows persons that they can move their head into diverse directions without missing the volume.
2. Cardioids Lavalier Microphone:
It is used within high noise locations.
Benefits of a Wireless Lavalier Microphone:
1. A Wireless Lavalier microphone is used to hide the mics in Television such as in talk shows, live stage programs and minster services.
2. The wireless Lavalier microphones are the external mic system to record the Audio a vast part of a video.
3. They are very helpful when the interview, reality shows on television and hidden camera situations are required.
The Wireless Lavalier microphones have the following terms :
1. They are Complete wireless microphone system with wireless receiver, lavalier and wireless strap with transmitter
2. They do and ultra silence process with low distortion, hence allowing you to get a better quality sound which makes listeners easy to understand.
3. You can attach microphone with clip easily.
4. They provide the clear broadcasting signals by the adjustable frequency.