
Here I will tell you about the types of digital cameras, types of image sensors or block-arrays, sizes of image sensors, and all the other technical jargon before you decide which digital camera you would like to purchase. A lot of people have no clue what the differences between digital cameras are and will just assume that the larger the numbers are the better the camera. So I am going to give you a break down of the different types of digital cameras first.
Now for a little information that may save you headache later:
Compact Point and Shoot Digital Cameras |
|
|
|
Point and Shoot type digital cameras are your basic digital camera that are often small compact cameras that you can take anywhere! These cameras often have very small image sensors which reduce the quality of the picture and also the lighting. You will see 2 types of these cameras, one will have a separate optical view finder and the others will have an LCD. If it has a separate optical view finder this means when you compose your shot you will see slightly different than the image sensor, so your picture may not be exactly what you thought it was going to be. Point and Shoot cameras get their name because they are almost 100% automatic, you just point and shoot and your picture is captured. After reading through my camera buying guide and you decided you want to go with the Compact Digital Camera click on Compact Digital Camera or use the navigation menus above. |
| | | |
Fixed Lens Digital Cameras |
|
|
|
Fixed Lens Cameras are in your medium range cameras as they offer a bit of what the point and shoot cameras do as most of these have an automatic setting. You also get the manual settings and features of the SLR cameras as you can change your focus, aparture, shutter speed, ISO, and much more! With this type of camera you usually don't have to worry about dust, dirt, lint, pollen, etc. getting behind your lens as the lens is fixed to the camera and can not be removed or replaced easily. For people with this type of camera if you were wanting to get more power from your camera's optical zoom you would have to add-on to the existing lens. Fixed Lens Cameras are usually as big as SLR cameras and typically of same image quality. They are not considered Single-Lens Reflex because they lack the mirror system. This camera has your image sensor constantly viewing the image, there is no mirror system that switches so you can view through your lens back to the image sensor. Yes you can see through the lens, but you are actually viewing through the image sensor which then transmits the signal digitally to an LCD (Liquid Crystal Display) and finally you will then view the image on the LCD. Viewing through and LCD does not show you the exact photo as LCD screens lack quality of shadows and lighting. |
| | | |
Now that you know the different types of cameras now you need to know a few more things about digital cameras before making your final decision. Here I will tell you about the different types of image sensors or block-array and the different sizes of image sensors used on these cameras. The image sensor is actually what is capturing your photos when you take them. Basically you point your camera at something to compose your shot, press the shutter button, your lens then makes the image clear and focused, then your image sensor reads these light rays and sends those signals digitally to your image processor to fine tune the image and make it readable by other software by changing the format, then the image processor sends this information to your recording medium (Memory Stick, Compact Flash, etc). There are all kinds of image sensors out there on the market that these digital cameras use, there are 2 basic types of sensors then there are many different sizes and variations of these 2 basic types, but I will not get into each variation here. The 2 types are CCD (Charged Coupled Device) and CMOS (Complementary Metal-Oxide Semiconductor).
Types of Image Sensors/Block-Array |
|
|
|
CCD (Charged Coupled Device) - This is the most common digital image sensor used in high quality cameras. Almost every manufacturer has a CCD image sensor camera. Usually being their most expensive camera.
|
|
|
CMOS (Complementary Metal-Oxide Semiconductor) - This sensor is used more as it is cheaper for camera companies to buy or produce. Just because all of this sounds bad this sensor can still take quality photos and will be very friendly with your battery and not suck it down instantly.
|
© 2008 - 2010 TDE222. All rights reserved.