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Find contact numbers or product support. Send your Canon product for repair. Expert services to keep your equipment working perfectly. CPS members can find the right contact for each country and get through to the experts who can help you. Expert services to keep your equipment working perfectly, enhance its imaging performance or repair it. Processing Raw Images. Back to articles. Your EOS camera captures images in a 'raw' format. This is neither an abbreviation nor a technical term.
It simply means 'not processed'. The raw data comes from the millions of pixels that make up the camera sensor. Each pixel is photosensitive and responds to light by generating a small electric current. The value of each current is converted to a digital format. This mass of data forms the bulk of the raw image file. This tutorial will explain how you can use these raw files to refine the decisions you made when you took the original photo. JPEG is an abbreviation and used to describe a method of reducing the large amount of data captured by the camera to a smaller file.
It does this by checking various settings on the camera, such as white balance, Picture Style, Contrast, Color saturation, Color tone and Sharpness. The camera processes the image according to these values and discards all the information not required. A JPEG image is also compressed which reduces the size of the file when it is saved, but allows it to open to a larger size when viewed. An advantage of shooting JPEG files is that the images can be printed, transmitted or saved without any further work.
For example, Facebook will compress a photo which is larger than px, and changing the Color Profile to sRGB will work best. Therefore, for Facebook users, always resize photos to px and save in sRGB to ensure optimal quality. Original image. Original image px uploaded to Facebook. Resized image px uploaded to Facebook. Look closely and we can see that the stain on the glass is less smudged on the px photo left than the original photo right.
The above are a brief introduction of RAW format and the best setting to upload photos. Please take these as reference and find the format and way to upload that work best for you! Related Articles. Exposure is a major factor to decide whether a photo is good or not. Histogram is a quantitative method to help you determine the exposure level of a photo. The name of every Canon EF Lens is made up of a bunch of numbers and letters that tell you something about the lens.
By making sense of the naming formula, you can instantly get to know the characteristics of different lenses. CR3 RAW file format, replacing the. CR2 format. Enabled with the. Along with most other new camera features, I felt compelled to figure this one out.
What started out as a brief look turned into a moderately-large project and I share some of what I learned below. A compressed file is usually smaller than a non-compressed file and all welcome a smaller file size. More images fit on a memory card or hard drive and file transfers take less time. How big is the difference? I created 6 comparisons using average scenes captured with a wide angle lens.
Here are the results. A compressed file is smaller than a non-compressed file as just mentioned ; however, non-compressed Canon RAW files are already considerably smaller in size than an equivalent uncompressed bitmapped TIFF file even an 8-bit file , indicating that some level of compression is already being included in normal RAW files. It would have been great to hear that Canon created a breakthrough compression technology and perhaps they did , but there is another primary reason for the smaller C-RAW size.
Using RAW images. RAW is the name given to an image file type that records image data captured by the camera's image sensor without any processing; it takes the name "RAW" because the data is raw. When recording JPEG images used with most digital cameras, the image data is processed in the camera to adjust image quality to a suitable level so that it can be used right after being imported to the computer. However, because JPEG data deteriorates whenever it is edited and saved, repeating those functions will cause a loss of image quality.
In contrast, RAW images need to be processed by special software before they can be manipulated with image-editing software. In this case, there is no deterioration of image quality when images are saved, so you can edit and save the images multiple times until you are satisfied with them. RAW images taken with your camera appear on the computer as files with a [.
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