Currently, digital camcorder because of its convenient, easy to use features, are increasingly being used in our border investigation and evidence collection, Media coverage and other work. Regardless of the digital photo framing, composition, light and other factors, the first thing to ensure that the picture resolution, which is the most basic requirements to meet the daily needs. I work with several years of practical experience, talk about how to obtain high-resolution digital Photos.

Firstly, the use of high-pixel digital camera, to capture high-resolution photos, choose a high-pixel digital camera is very important, but not the pixels, the higher the better, but also the root. It uses pictures to decide. Available online or send Email, need 400000-800000 pixels; 5 × 7-inch enlargements, 2.1 million pixels will enough. If it is enlarged to 8 × 10 inches or more, it would need 3.1 million pixel digital camcorders. Need to enlarge the size of the larger number of requests. The higher pixel values ​​of digital cameras need. However, one should note that the rule is that the same pixel values ​​in digital camera, the image sensor area larger digital camcorder image quality better, with clearer photographs.

Then, the use of high-resolution mode, needless to say, in a digital camera, first set the resolution to note the problem. Of course, the higher the resolution setting, shot out of the picture is the better. However, there is no need to set the resolution too high, also according to need. High-resolution image, large amount of data files, not only takes up a lot of storage space. But also read, storage, transmission, processing speed will be very slow. It’s a waste of time. Resolution, the total pixel value is shooting the choice. Resolution digital camcorders are generally divided into high, medium and low grades. We take an example for Nikon D100. Nikon D100 for the 6-megapixel digital camera, its resolution is divided into three kinds of English are Large, Medium and Small. It referred to as L, M and S. Three kinds of resolution of the actual number of pixels are following, Large: 3008 × 2000, the actual pixels of 600 million. Medium: 2240 × 1488, 3.3 million effective pixels. Small: 1504 × 1000, 1.5 million effective pixels.

Digital camcorder at the factory have been carried out image resolution and compression mode settings, the Nikon D100 is factory set to Large, the 3008 × 2000 = 600 million pixels. Generally enlarged to 8 × 10 inches below the photo, use the format of 1504 × 1000 Small can actually like factors of 1.5 million; enlarged to 8 × 10 inches to 14 × 20 inches, you need to Medium format 2240 × 1488, 3.3 million actual pixels; if to zoom in to 20 × 24 inches or more, you need Large format 3008 × 2000, the actual pixels of 600 million.