Photography For Beginners April 15, 2010
Posted by admin in : Arts & Entertainment , trackbackIn this digital photography for beginners article we will look at the file formats. In the old days, pictures will be captured on photosensitive film. Then, after developing in a darkroom, the negative will be obtained. In digital photography, images are stored as digital files. To view a file is decrypted – and there are 3 basic types of file used – JPEG, TIFF and RAW.
Before we consider these types of files, it is appropriate to explain the difference between “loss” and “lossless” files. After photography, the camera stores the data on the memory card in the file. If all data is saved, it is known as a lossless file. These files are large. RAW files without losses. To reduce the file size, the camera could take a piece of data is not so easily perceptible to the human eye. JPEG is a loss of a file. File TIFF, in principle, a flexible format that can be lossless and lossy.
JPEG – is the most common file format used by amateur photographers, mainly because many photos can be recorded on one card. While the actual number will vary depending on the camera used, you can take 1500 images, using only 2GB of memory.
Because it is a lossy file, images are compressed. As a result, a greater number of photos may be when compared with the lossless files. The camera can set the compression level, so that more or less, photographs can be taken. Just keep in mind that the overall quality will depend more compressed file. So if you’re looking to print images above standard sizes, you will need to choose the less compression.
RAW – These files take data directly from the camera sensor. This means that they are not processed by the camera at all, and represent a pure image, as taken. They are sometimes called “digital negative”. Using the optimal (ie, at least) the degree of compression can be expected to record images only 100, or less, 2 GB card using 15megapixel camera. A big plus is that you will be able to produce high-quality prints in A3 format and more. Professionals and serious amateurs use RAW files.
Unlike JPEG, RAW files are not universal from various manufacturers. For example, Canon uses the term RAW, while the equivalent Nikon known as NEF files. They are not compatible with each other. However, each manufacturer will supply the software with the camera in order to process and print the image. RAW files are great to work with images after production, because all the original data is still intact, so they can work.
TIFF – In fact, TIFF, typically used as a loss of a file format that uses no compression. Thus, the file size can be large, but save your data, as well as the subsequent quality. Nevertheless, the file size is huge compared to the identical file JPEG. Common use TIFF as a working format for digital image editing in Photoshop, or its equivalent. When editing a JPEG, a slight deterioration occurs with each new saved. TIFF lossless compression if not chosen, so that no loss of quality each time a file is changed and saved.
TIFF should not be used to display images on the network, due to file size. Most web browsers will not display the image TIFF.
We hope that this Digital Photography for Beginners article helped to clarify the difference between file formats. Thus, if the ultimate quality and large print is not required, JPEG files are more than enough, and can also be used on the Internet. RAW files are perfect for serious photographers who want the highest quality and the ability to make detailed changes in post production. These files may be amended, TIFF or JPEG, when ready. TIFF files do not lose money (if no compression) so good to work for positions in manufacturing, until the final save as JPEG.
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