Pinhole Camera

Welcome, this is how i made my pinhole camera, what i used, what i would do different next time and other useful information.







Friday 11 February 2011

Question 3 - Have online videos lowered the standars of television production?

3. Have online videos lowered the standards of television production?
I believe there is for’s and against in this argument because in some cases they do but in some they don’t.
Online videos can have a big effect on televised production, there are a number of websites were you can watch clips of movies and programmes correctly like BBC iPlayer and ITV Player this is where they still get credit for people watching their programmes and there are some websites were you can watch clips of these programmes and movies from YouTube or Blip.TV. Now because you can watch these on YouTube or Blip sometimes the quality is not as good as you would expect it or it will keep buffering, so you could get very annoyed in watching them, on the other hand you can actually watch them on sites like BBC iPlayer or ITV Player, from these sites you can watch your desired programmes in a good quality but depending on the internet speed it could still buffer this is why watching it on the television can have its advantages and online videos can have their disadvantages.
On the other hand in some cases online videos can have their advantages, when you’re watching TV if there is two programmes you want to watch and you don’t have a recording system or VoD you would only be able to watch one, but if you have the internet you could possibly find the programme you missed and watch it from there, also by watching it on the internet you can watch it any time you want to instead of being in a time frame whilst watching it on TV.
I believe both arguments have a for and a against, I believe some websites can ruin the experience of watching a ordinary programme on your television set. Websites like BBC iPlayer and ITV Player do not ruin the experience as they are part of the company that is there specific website where you are a loud to watch different programmes from there channels past the 7 day mark. Websites like YouTube and Blip who have people place them on their without permission I believe should be banned as they don’t have a right to post other peoples work on their sites and the quality is nowhere near as good as it is on the TV or BBC iPlayer and ITV Player.
I have came to the conclusion that if the programme your watching it on a site which is either aloud to have that programme or the actually BBC or ITV or any other channels specific website then online videos should be allowed but not on YouTube or Blip.TV. I don’t believe online videos have lowered the standards if there on their desired website but as a lot of people are downloading these from websites which are not allowed then yes, online videos are bringing down the reputation, because when you watch it on TV it has counted as a view but if you watch it from a website like YouTube it does no count.

Question 2 - How has the digital world changed the way we consume and create YV?

2. How has the digital world changed the way we consume and create TV?
There are different ways in which you can watch TV, the main way people watch TV in Digital with Virgin and Sky this is where you have a digital box which is wired underground which then sends signals through the cables so you can watch your TV. Television has been getting better and better through the years, you can now watch TV on the internet, there are 3 good ways of watching television programmes on the internet Interactivity this is a IP – based platform which allows significant opportunities to make the TV viewing experience more interactive. VoD which stands for video on demand this lets you browse online movie catalogue and you can watch trailers and you can select to watch anything from the past seven days. There are many websites you can watch TV on the internet these are just some, BBC iPlayer, ITV Player, TV Shack, Surf the channel and many more.
Editing has improved massively in the digital world, because it easier now to transfer your videos or pictures into software it takes a less time. Now because transferring videos and pictures has gotten easier so how has the editing its self but also you can do much more. With the older editing software you could only cut add some titles and do the basic stuff, but with digital editing you can do much more you can add effects you can drag clips from one end of the timeline to the other. You can make the film look very professional and neat. Now you make think with all this new editing software you would think it would be harder to use but it’s not all the new software comes with a help engine and a very detailed manual.

Question 1 - Brief history of TV in the UK and abroad

Brief History of TV in the UK and abroad?
Public television broadcasting started in 1936, there are over 400 channels and for consumers there is on-demand content. On demand content is where you can watch programmes from the past seven days. You can watch television from many different ways, from the ordinary television also on – demand and live streaming from your Pc and your games console. In the UK there were two names who thought they invented the television these were Campbell – Swinton and John Logie Baird. Campbell – Swinton thought of the concept of the TV and John Logie Baird for the televisions practical demonstration.

The systems that are used in America and Canada is called NTSC, in Western Europe and Australia they use a system called PAL and in the Eastern Europe and France they use SECAM, without  standards conversion it is impossible to view one of these programmes in a different country.

As you will see in the tables below are the differences between SECAM, NTSC and PAL the differences you will find are the lines/field this means a complete video frame in the 525 line system consists of an even line field followed by an odd line field. In the 625 line system, a complete video frame consists of an odd line field followed by an even line field. Also horizontal frequency which is where the CRT moves from one side to the other, you will also fins vertical frequency which is where the CRT moves from the bottom to the top. Also the video bandwidth which is the minimum analogue bandwidth required to reproduce the smallest amount of detail contained in the video signal. The last two are the colour sub carrier this is the frequency that the colour information is at.  The higher the frequency the better results and finally the sound carrier is the frequency that sound information is at.  




NTSC NATIONAL TELEVISION SYSTEM COMMITTIEE
Lines/Field
525/60
Horizontal Frequency
15.734 kHz
Vertical Frequency      
60 Hz
Colour Subcarrier Frequency
3.579545 MHz
Video Bandwidth
4.2 MHz
Sound Carrier
4.5 MHz


PAL PHASE ALTERNATING LINE
SYSTEM
PAL

PAL N

PAL M

Line/Field
625/50
625/50
525/60
Horizontal Freq.
15.625 kHz
15.625 kHz
15.750 kHz
Vertical Freq.
50 Hz
50 Hz
60 Hz
Colour Sub Carrier
4.433618 MHz
3.582056 MHz
3.575611 MHz
Video Bandwidth
5.0 MHz
4.2 MHz
4.2 MHz
Sound Carrier
5.5 MHz
4.5 MHz
4.5 MHz


SECAM SEQUENTIAL COLOUR WITH MEMORY
SYSTEM
SECAM B,G,H

SECAM D,K,K1,L

Line/Field
625/50
625/50
Horizontal Frequency
15.625 kHz
15.625 kHz
Vertical Frequency
50 Hz
50 Hz
Video Bandwidth
5.0 MHz
6.0 MHz
Sound Carrier
5.5 MHz
6.5 MHz



In the 1920’s a lot happened for television in 1922 on the 18th October a British broadcasting company was formed, and then in 1923 a big step for TV there was the first daily weather broadcast. In 1924 a lot happened there was the first religious service broadcasted and the first Greenwich Time signal broadcasted, also the first broadcast by King George V. Then in 1926 John Logie Baird succeeds in transmitting Television pictures, On the first of January the BBC was established by Royal Charter as the British Broadcasting as the British Broadcasting Corporation. The first running commentary on a sports event was a rugby international match between England and Wales at Twickenham. Then to finish of the 1920’s John Baird experimented 30 – line television.
In the 1930’s the BBC started to broadcast Orchestra’s, Until 1936 there has always been a male TV announcer but on the 31st August Elizabeth Cowell  entered the television world and became the first Female television announcer. In 1937 there was two big events for TV on the 12th May there was the first use of TV outside a broadcast van. On the 30th April 1938 it was a big time for sports fans as the first televised coverage of the FA Cup final. In the 1940’s not a lot happened for television, but then entered the 1950’s this is where a lot of television programmes started to be broadcasted, In the 1960’s a big event for television this was when  Princess Margret got married and it was being broadcasted on television also the Grand National. Also loads more TV shows started to be broadcasted, the first Doctor Who started in the 1960’s. In the 1970’s more and more television programmes started to be broadcasted, television was becoming more and more popular by the minute. As the years went by more and more television programmes started to be made and broadcasted, there was nothing new from the 1970’s onwards as everything was created before the 1970’s the only thing you could improve on your television was the size of the screen, as we hit the year 2000 flat screen TV’s started to be developed these were much smaller than the box televisions sets. Once everything was done in television they decided to add better graphics HD is very popular in most TV’s now.

As you have read the television has increasingly expanded throughout the years has gone by new programmes better pictures and the TV itself, we are in the year 2011 and they are still trying to make the television even better as 3D has come into the picture you can pick up television’s with special glasses so you can see the picture coming out to you. As the TV has gotten better through the years the price of one has also increased.