I am Jason Cher MediaTech. ;DD
Life thru lense. Yay! Anyway that is a nikon D5000.(Very Expensive)
Year 2010
1) I have to finish all my homework on time.
2) Win something in competitions.
3) Attain good result.
4) Get into CSE (SMTP)
Miscellaneous
~ This is still under maintaintence ~
Hobby
Hahas. I like photography as there is a saying,"A picture is equal to a thousand words", maybe 2 thousand. There are a lot of cameras around but I prefer Nikon DSLR as I like their lens, especially the 55-200mm lens. I hate to study but I will end up studying because I am afrail to fail. I like to eat spicy stuff, is there anyone who likes it too?
High speed photography is the science of taking pictures of very fast phenomena. In 1948, the Society of Motion Picture and Television Engineers (SMPTE) defined high-speed photography as any set of photographs captured by a camera capable of 128 frames per second or greater, and of at least three consecutive frames. High speed photography can be considered to be the opposite of time-lapse photography.
Tilt Shiift Photography
"Tilt-shift" actually encompasses two different types of movements: rotation of the lens plane relative to the image plane, called tilt, and movement of the lens parallel to the image plane, called shift. Tilt is used to control the orientation of the plane of focus (PoF), and hence the part of an image that appears sharp; it makes use of the Scheimpflug principle. Shift is used to change the line of sight while avoiding the convergence of parallel lines, as when photographing tall buildings.
Black and white photography
Since the first film was shot and developed, black and white has been
a favorite choice among master photographers around the globe.
Why is it that this medium is preferred by so many fine artists and masters of the trade? • It's classic and elegant, even romantic and special. • When learning photography, the simplicity of black and white helps you focus on the important stuff. • You can often turn a drab color shot into an amazing black and white.
When you look at the technical specifications of a digital camera, one of the very first specification mentioned is its maximum aperture and/or its aperture range. What is 'aperture,' what is a good aperture range, and how is aperture relevant when it comes to choosing a digital camera?
What Is Aperture?
The main function of a camera lens is to collect light. The aperture of a lens is the diameter of the lens opening and is usually controlled by an iris. The larger the diameter of the aperture, the more light reaches the film / image sensor.
Aperture is expressed as F-stop, e.g. F2.8 or f/2.8. The smaller the F-stop number (or f/value), the larger the lens opening (aperture).
In practice, unless you are dealing with a fixed-aperture lens (many simple point-and-shoot cameras have only one fixed aperture), the aperture of a lens is usually expressed as a range of fstops.
A Good Aperture Range My personal preference for a 'good' aperture range is: F1.8 - F16
F1.8 F2.8 F4 F5.6 F8 F11 F16
This tells us that the camera has an aperture range of F1.8 to F16; the maximum aperture is F1.8, and the minimum aperture is F16.
There are 5 f-stops between the max and min aperture. If your camera's lens is currently set at an aperture of F5.6, closing it by 1 f-stop would mean selecting F8; opening it up by 1 f-stop would mean selecting F4.
F1.8 F2.8 F4 F5.6 F8 F11 F16
How Is A Large Maximum Aperture Relevant?
A large maximum aperture is preferable to a smaller one since it gives the photographer more latitude in the kind of pictures that can be taken.
For example, it is pretty obvious that the larger the aperture, the better your digital camera will perform in low-light situations, since a larger lens opening is able to admit more light than a smaller lens opening.
A larger max. aperture also allows you to use a faster shutter speed to freeze action. So, let's say the light meter in your digital camera calculates that for proper exposure in that indoor arena, you need an aperture of F4 and a shutter speed of 1/60 sec.
F4 1/60
To use a faster shutter speed (say, 1/250 sec.) to freeze action, you have to open up the aperture to allow more light in for that shorter amount of time.
For every shutter speed increment we go up, we need to open up a f-stop of aperture. From 1/60 sec. to 1/250 sec. there are 2 increments, so we open up the aperture by 2 f-stops, going from F4 to F1.8. Note that the camera would give proper exposure at 1/60 sec. at F4, 1/125 sec. at F2.8, and 1/250 sec. at F1.8, since all three aperture/shutter speed combinations allow the same amount of light into the camera.
Of course, in a digital camera set on Auto mode, you can select Sports scene mode, and the camera will automotically select a fast shutter speed and the appropriate aperture. Likewise, in Shutter-Priority mode, you can choose which shutter speed you want (fast or slow), and the camera will select the appropriate aperture for proper exposure.
In our example above, let's say the lens on your digital camera only opens up to a max. aperture of F2.8. If you now select 1/250 sec. (in Shutter-Priority mode), the camera will not be able to select an aperture larger than F2.8 (in our example, it really needs F1.8). It would then give you an "underexposure" warning. If you go ahead and take the picture anyway, your picture would be 1 f-stop underexposed (i.e. you really needed to open up the aperture by 1 more f-stop for correct exposure).
How Is A Small Minimum Aperture Relevant? A small minimum aperture is preferable to a larger one since it also gives the photographer more latitude in the kind of pictures that can be taken. So, let's say the light meter in your digital camera calculates that for proper exposure on a bright sunny day, you need an aperture of F8 and a shutter speed of 1/125 sec. For example, I like outdoor photography so that f stop is higher so I can up my shutter speed.
F8 1/125
Well, if you decide to use a slower shutter speed (say, 1/30 sec.), this means that you have to compensate by closing down the aperture to allow less light in.
Aperture and Depth of Field (DOF)
The Depth of Field is the distance wherein objects are in focus. There are times when you desire a great depth of field, i.e. where objects both close to you and far from you are in focus. This is especially true when you are taking a landscape picture and want as much as possible to be in crisp focus.
One way to influence DOF is by selecting the appropriate aperture. The rule of thumb is this: • Select a large aperture (or small f/value or small aperture value), e.g. f/2.8, to obtain a shallow DOF • Select a small aperture (or large f/value or large aperture value), e.g. f/8.0, to achieve great DOF
Picture on the right
Note how the use of a large aperture (small aperture value) throws the flowers in the background out of focus. Focus has to be precise.
(49.8 mm, Av, Spot, 1/30 sec., f/3.5, +0.7EV, Macro, Tripod used )
Picture on the extreme right
Using a small aperture (large aperture value) extends the DOF from the foreground all the way to the background.
Hello, once again. This is lesson 2 and I will be explaining the uses of lenses and type of lenses.
Which Camera should I buy? Usually they were in the market for a point, fairly entry level point and shoot digital camera.However these days with the increase in people buying DSLR cameras.
Which Lens Should I buy for my DSLR? Answering the question is something of a minefield as each digital camera manufacturer offers a large range of lenses of different qualities and budgets. Add to this that each photographer shoots differently and has their own styles and preferences and it can be something of a minefield to navigate to answer the ‘which lens’ question.
Types of DSLR Lenses
Standard Lenses – this is a term that seems to be disappearing a little from terminology. Traditionally on film cameras it was used to describe lenses in the 50mm range because this is what usually came with the camera.
Kit Lenses – These days the lens that is offered as a package with the DSLR is generally called the ‘kit lens’. It is generally an entry level quality zoom lens. They are usually a fairly general purpose lens designed for everyday shooting. My personal preference is always to buy the DSLR as a body only and to upgrade the lens from the kit lens as they are generally at a lower to medium end of the spectrum of lenses.
Prime Lenses – A prime lens is a lens that has one focal length only. They are becoming less popular in an age where photographers like to have the convenience of a range of focal lengths at their finger tips (see zoom lenses) but they are definitely worth considering. Zoom lenses are increasing in the quality that they offer but prime lenses are known (especially at the top end) for their image quality and speed (faster aperture).
Telephoto Zoom Lenses – Zoom lenses are the most popular DSLR lenses at present and come in a range of configurations and levels of quality. Obviously the benefit of zooms are that you do not need to physically get closer to your subject to get a tighter framing of the image. These lenses can have quite narrow ranges or quite long ones.Keep in mind that if you buy one with a long focal length (for examples you can get them in lengths ranging up to 300mm or longer) that the longer your focal length the more impact that camera shake has on your images. More and more lenses these days are being released with Image Stabilisation (IS) to combat camera shake. Telephoto Zoom Lenses are also one of the lens with the most zoom.
Macro Lenses – these lenses are specifically designed for shooting objects up close. Many lenses and cameras come with a ‘macro’ setting but true macro lenses will produce images that are life size and that enable you to get in incredibly close from the subject you’re shooting. A macro image, as the image suggests, is focused on a main subject thus the image behind will be blur.
Wide Angle Lenses – As their name suggests, these lenses enable their users to take shots with a very wide perspective. They are useful for landscapes and for getting in nice and close to subjects still fitting a lot of them in.Wide angle lenses come both as prime lenses but also are being found at the lower end of telephoto zoom lenses increasingly. Be aware that very wide lenses will sometimes distort your image a little (or a lot), especially at the edges of your photos where they can be quite curved. This can be used to great effect but can also be quite frustrating at times.
At the extreme end of the ‘wide angle’ range are ‘fisheye lenses’ which purposely distort your image in a curved way to get more into the shot. Again this is a style of photography that many love but is an art to get right.
Who would you want to be friends with in the novel? Explain.
I would like to be friends with Boo Radley and Scout. I felt that Boo Radley is very pitiful and does not have any friends. Furthermore, children spread rumors that Boo Radley is very evil and scary, also so violent that he killed his own mother. All of this is not true, but people believed it thus causing Boo Radley to have no friend. I want to be his friend so that he will feel less lonely and thus, his real self can be shown to the public which in turn will get him more friends.
I felt scout is quite lonely as Jem had grown up. When Jem grow up, Scout would have lesser chance to speak or play with him. Thus, I would be friends with Scout and she can talk to me and will feel less bored.
I felt that the multiple intelligence is very important. It shows the skills that we have and what we are better in. The multiple intelligence test shows that I am Logical (Number Smart). Naturally, I am good in Math, so my number smart is high. I am weak in music (hahas) , so I am kind of untalented in Music. Overall, this test is quite accurate.
ne with a long focal length (for examples you can get them in lengths ranging up to 300mm or longer) that the longer your focal length the more impact that camera shake has on your images. More and more lenses these days are being released with Image Stabilisation (IS) to combat camera shake. Telephoto Zoom Lenses are also one of the lens with the most zoom.
