2nd Week: Aperture & Case Study 1

The 2nd week of the lesson comes with the big word called APERTURE.
I still remember this is the most basic knowledge of handling a professional SLR camera in the old days.
Aperture comes with another word called SHUTTER SPEED.
I like to put these big words as: EXPOSURE = APERTURE + SHUTTER SPEED
The foundation of photography is the technique of how the EXPOSURE been done.
In those old days, the control of aperture and shutter speed are vital to produce a good picture. But nowadays, there are many additional factors need to be taken into accounts.
Anyway, we are in the digital era, the film is replaced by the sensor. The image is processed digitally immediately and saved into the memory card. It is no longer like a small mechanical camera on your hands, it preferably called an Digital Image Recording Device.
In other word, there are other settings in DSLR we need to learn, if we set it right, I am sure it won't be a problem for us to capture a great picture.
The Case Study, I try to solve it like a situation I often ponder on.
Here, I list out the features and the specifications we need to pay attention to before we decide to buy a camera of your needs:

Topic		Compact DC	Digital SLR
Quality:	Image	Depends on the number of pixels.	Partially rely on the number of pixel, it also rely on the user’s handling too.
	Color	The properties (image and color) of the picture are flat as the pictures are taken in automatic mode.	The properties (image and color) of the picture are rich and concrete. You will surprise what your DSLR can do for you.
	Sensor / Image Processor	Optimum sensitivity of light and lower image processing speed.	High end, high sensitivity of light and image processing speed is high.
	Noise	Optimum noise reduction feature.	Improvise with high end noise reduction feature.
Technical:	Shutter Speed	Automatic and adjusted by the camera itself.	Automatic and can be adjusted manually.
	Aperture	Automatic and adjusted by the camera itself.	Automatic and can be adjusted manually.
	ISO	Adjustable, but the range is narrow.	Adjustable, wider range.
	Image Quality	Adjustable, vary from Low, Normal to Fine.	Adjustable, vary from Low, Normal to Fine.
	Flash	Built-in. Automatically firing if set to AUTO, but not powerful for low light condition. The direction of the firing is fixed.	The firing direction of Built-in flash is fixed but external plug-in flash unit is flexible with TTL (Through The Lens) technology. It is good to have one.
	Lens	Unchangeable.	Changeable.
	Zoom	Optical zoom does help in producing fine image but digital zoom doesn’t help much.	Optical zoom is flexible and capable produces fine image but digital zoom doesn’t help much.
	Image Stabilizer	To avoid blur image, just set to digital image stabilizer mode.	This feature lies upon the type of lens you use, not its camera body. Nikon called itself VF lens. Canon called it IS lens.
	Focusing	Focusing speed is low. It is a disaster under extreme low lightning condition.	Focusing speed is high due to the use of ultrasonic motor embedded in the lens. Good for action.
	Continuous Shooting	Due to slow focusing speed, it is almost impossible to Compact DC.	12 frames per second is possible.
Price:		RM299 – RM3999	RM1600 and above.

For further reading, please go to this link:
http://elearn1.utm.my/10112/mod/forum/discuss.php?d=62337

So, I suggest Siti to buy a DSLR.