Posts Tagged digital camera with optical zoom
Camera Optical Zoom
Posted by admin in Uncategorized on July 16th, 2009
Smart Zoom Digital Cameras
Each camera comes with its own individual features like image resolution, storage capacity, lens power etc. So, what should the buyer look for in the camera?
digital camera with optical zoom
An example is the number of pixels the sensor records on the cameras. Many factors need to be considered when a buying a digital camera. Look at the online information of digital camera web sites and suitable models of what you want. Then go to your local camera store and handle the actual camera. Are 4×6 or 8×10 pictures what I want – if so, I need to choose the camera accordingly, as the quality of the camera is directly proportional to the resolution of its images. The 3 megapixels camera outputs images that are anywhere from 1 to 2 MB in size while a 7 MP camera outputs images that are 4 to 5 MB in size. 10MP means 10 million mega pixels. If a camera captures an image with 10mp and it is cropped to 80%, then enlarged to the original size, the new image will only have 8mp, thus a reduction in image quality of 20%. Where digital zoom crops an image and then enlarges it to the full mega pixel size of the original by interpolating, smart zoom works by limiting the mega pixel size of an image, therefore eliminating the need to interpolate and dilute the quality of the digital image. If you are going to buy a digital camera for yourself, to compare different digital cameras is a must for you. The pixels, optical, memory, camera size, digital zoom and cost of various digital cameras should be compared well before picking any camera. Decide on why you need a digital camera. There are different sizes of models that include compact, miniature and big size cameras. Then you may start comparing the specific features of the digital camera. The more the pixels in the camera, the clearer and quality pictures it would produce. The sensor of the camera can be called as its eye. Generally, the digital cameras with larger sensors have better quality diodes, which result in sharp and clear pictures.
You should also compare the digital camera on the grounds of its memory. You should compare the capacity of built-in memory of the digital camera. It is important to check the memory compatibility while comparing the digital cameras.
You can also compare the SLR digital camera with compact digital camera. There are many features that you may find in a compact digital camera but not in the SLR digital camera. The SLR cameras are big cameras, efficient in producing clear, sharp and quite colourful images. There are more features that should be compared before buying a digital camera. Optical zoom is much better than digital zoom.
Sony announced the release of its latest Sony DSC HX1 camera in Las Vegas at the PMA show. This digital camera with the 20xoptical zoom, allows the photographers to take pictures from great distances. The camera enables shots in 224 degree panorama with one press button and sweep motion. It is the first camera in cyber shot from Sony to use Exmor CMOS sensor technology.
Camera Zoom
Posted by admin in Uncategorized on July 15th, 2009
Digital Zoom Versus Optical Zoom
Many digital cameras offer both digital and optical zoom. These two often confuse the average camera buyer, until you know what you’re looking at.
camera digital zoom
Optical zoom works much like the zoom lens on a 35 mm film camera. It changes the length of your camera’s lens and draws the subject closer to you. The optical zoom keeps the quality of the picture. Digital zoom works differently. It simply takes the picture and crops it then enlarges the part that is left. It causes the quality of the photo to be reduced, sometimes greatly.
What this means in terms of output is you may have a larger view of an object with the digital zoom, but chances are your image will become unfocused. Details will become lost. It is actually best to turn off the digital zoom feature of your camera if possible. This will prevent you automatically zooming in too close as the digital zoom is often an extension of the optical.
There are a couple of things you can do if you want a closer view of a subject but want the quality of your picture to still be good. Try moving in closer when you take the picture. Often only a foot or two will do the trick. If this isn’t possible, you can set your camera to take a picture at its highest file size. This will result in a photo that can be cropped to include only your desired subject, yet allow for an image that is still clear.
Digital zoom has its place. It can be used if the only destiny of your photo is the internet. Photos online can be a much lower quality in the camera and still appear acceptable when sent through e-mail or posted on a web gallery. If your goal is printing, however, seek a camera that has a greater optical zoom and turn off the digital zoom. Your pictures will be better in the end, even if they are not as close up.
