For example, a nice blue sky going from deep blue to a lighter blue, may show banding, especially if the photo has been put on a web site, where typically the quality is less than Superfine. This causes bands of colour in smooth gradations. When compressing, the camera averages out the colours in an area and literally throws out some of the similar colours and decides some colours can stay. ![]() ![]() zooming-in to the photo a lot.Īrtifacts show up most when you have a solid colour in your photo, such as a blue sky or red car. You may notice both artifacts and pixels when viewing an image larger than 100% – i.e. Artifacts have an uneven pattern to them. Each pixel is clearly defined as a square. With pixelation you are looking at are enlarged pixels, or squares, and the image looks steppy. ![]() Pixelation happens when you view an image at 200% or more. If you cannot see the differences at this size, click the photo and zoom in with your browser (Command/Ctrl +). This disappears somewhat on the Fine example, and is almost unnoticeable on the Superfine example. What you notice is that on the Normal setting, artifacts (sometimes mistaken for pixelation) occur around the edges of the tree branches. The first photo was taken with the camera on Normal, the second on Fine, and the last one on Superfine quality settings. That brings me to the main point of this post – compression quality. I like to print at 300 ppi, but very few people will notice the difference, especially if your image is exposed properly and of good quality. These dimensions above are for a 200 ppi file. Here are some typical file sizes to make certain sizes of prints: If you just need small snaps of a party, then you wouldn’t need such big files, but on your trip to Niagara Falls, you probably would, because you might make a large print for your wall one day. You can choose various file dimensions when you are setting up your camera to take pictures. 3000 multiplied by 4000 equals 12 million, that’s where 12 mega pixels comes from (mega = million). Most people understand that part.įor example, a 12 mega pixel camera would have a pixel dimension of 3000 x 4000 pixels. Picture size (also called: file size, image size) has to do with the pixel dimensions of the file. ![]() Your camera typically has two settings that have to do with the capture of the images. This post explains and gives examples of what the various quality (or compression) settings for jpg files mean on your camera. To get the best images from your camera, it’s good to understand what all the functions mean and do. Take your film to the lab, and as the old Kodak saying goes, “You push the button, we do the rest.” With digital photography there are several menus and camera functions to scroll through before you start taking any photos. No fuss, no muss, just pick up the camera, stick in the film, point, and shoot. In the days of film, a point and shoot camera meant just that. Start with some basics, like picture size and quality There are just too many things to set and adjust, like image size, image quality, ISO, white balance, that most people keep their cameras on full automatic mode all the time. The main stumbling block in digital photography is that all the menus and choices are baffling, especially to the novice. Normal, Fine, Superfine! Too many choices!
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