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Friday, February 12, 2010

Photography (People)





A group of people are preparing themselves in the field to welcome the special guest who is coming to SST...


While a group of professional photographers are waiting patiently for the arrival of the special guest.



Oh yeah! Lady Gaga is finally here! The photographers are taking pictures of her while others are running upstairs to get her signature:D


When is the best time for photography?



In the early morning and late afternoon, when the sun is low, the light is gold and orange, giving your shot the warmth of a log fire. Professional photographers call these the 'magic hours' and most movies and magazine shots are made during this brief time. It takes extra planning, but saving your photography for one hour after sunrise, or one to two hours before sunset, will add stunning warmth to your shots.

http://www.photosecrets.com/tips.p05.html

Lai Ziying

Thursday, February 11, 2010

Photography



1) Different types of photography
nude photography, sports photography, underwater photography, landscape photography, animal photography, aerial photography and portrait photography, etc. 
http://www.dpdigest.com/types-photography/

2) Equipments
A tripod, lenses, filters, camera, etc.
http://www._5116558_kind-equipment-needed-do-photography_.html

3) Aperture
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.
http://www.photoxels.com/tutorial_aperture.html




4) Focus

Center Focus will focus on the center of the frame.
Multi Focus automatically selects between a number of AF frames and focuses on the most contrasty subject closest to the center of the frame. For example, if your main subject (i.e. the subject you want to be in focus) stands beside some other object (behind or in front of your main subject) of greater contrast, the camera will focus on the latter object and your main subject will be out of focus. So, if you use Multi Focus as your default focus mode, this may explain why many of your shots are out of focus.
Area Focus deserves some explanation. I believe it is a focus mode that few uses, but there are certain situations where Area Focus is perfectly suited for and can help you capture a sharply focused shot where the other focus modes fail.
http://www.photoxels.com/tutorials/tutorial-area-focus/


5) Shutter Speed


In film photography it was the length of time that the film was exposed to the scene you’re photographing and similarly in digital photography shutter speed is the length of time that your image sensor ’sees’ the scene you’re attempting to capture.

http://digital-photography-school.com/shutter-speed


6) ISO speed

ISO speed affects the shutter speed / aperture combinations you can use to obtain correct exposure.
Suppose your digital camera's light meter warns you there is not enough light to correctly expose a scene. You could use the on-board flash, but let's suppose again it's not allowed (like in a concert or indoors recital).
You would then need to use a higher ISO. Set on "ISO Auto" mode, your digital camera will automatically select a higher ISO. Otherwise, you can manually select the next higher ISO and see if the increased sensitivity allows you to obtain a correctly exposed picture. If it does, you can now take a correctly exposed picture.
Similarly, if you find the camera is using a shutter speed that is too slow (1/60 sec. and slower) to handhold the camera steady and shake-free (thus resulting in blurred pictures), and you cannot open up the aperture anymore, and you do not have a tripod or other means to hold the camera steady, and you want to capture the action, etc. etc. -- then you might select the next higher ISO which will then allow you to select a faster shutter speed.

http://www.photoxels.com/tutorial_iso.html


7) Metering


Metering is a process which involves the camera taking a light level reading from the scene and selecting the appropriate combination of aperture and shutter speed to set the required exposure value. Various modes are offered to allow the user to select the most suitable one for the specific lighting conditions These can then be changed manually via use of exposure compensation metre if required. There are various types of metering which can be set, and these change the way the light levels are read by the camera.


http://www.ephotozine.com/article/Beginners-Guide-to-Photography--Metering-6351




8) White Balance


White balance (WB) is the process of removing unrealistic color casts, so that objects which appear white in person are rendered white in your photo.  Proper camera white balance has to take into account the "color temperature" of a light source, which refers to the relative warmth or coolness of white light.  Our eyes are very good at judging what is white under different light sources, however digital cameras often have great difficulty with auto white balance (AWB).  An incorrect WB can create unsightly blue, orange, or even green color casts, which are unrealistic and particularly damaging to portraits.  Performing WB in traditional film photography requires attaching a different cast-removing filter for each lighting condition, whereas with digital this is no longer required.  Understanding digital white balance can help you avoid color casts created by your camera's AWB, thereby improving your photos under a wider range of lighting conditions.




9) Composition (Rules)
http://digital-photography-school.com/5-elements-of-composition-in-photography




10) Techniques
http://www.photolinks.com/resources.html

Lai Ziying
S101