Everything about the RAW Format: Advantages and Disadvantages
We took a while treating only issues with cameras and equipment, Those of you with a compact camera you'll be more relaxed, because the RAW format photos is a characteristic of digital SLR cameras. But if you have a DSLR and now only you doing photos in JPG you may want to take a look at the issue today.
In today's article I will try a very simplified explanation:
* What is the RAW format.
* The advantages of shooting photos in RAW mode.
* What inconvenienced.
* Who is given the RAW?
What is the RAW format:
RAW means "raw" in English. Therefore, it is a format with which we maintain the photo raw, raw, as if we had not yet taken.
When shooting a picture in the common JPG format the camera records the image on the memory card in a definitive way that does not support changes later, or maybe yes but very few. However, if the photo shoot in RAW format because we are actually "conservative" in any way the scene inside the memory card and thus maintain the ability to finish taking the picture later on your computer.
When the camera shoot the photo in JPG format the camera records the image permanently on the memory card in a format (JPG) interpretable by any photo software. In addition, at the time the camera records the picture with some data (white balance, saturation, exposure, contrast, etc..) And ignores other unnecessary data. Somehow the camera compresses the picture or the bag and leave it ready for viewing at any time, send to a friend, publish it on our Facebook, etc.
In contrast, when shooting with the RAW format, the camera records not only image data but also all possible values, leaving the picture somehow "open" to any changes subsequently. Imagine, for example the photo shoot with values of exposure and white balance x, but then we turned around and we want to change those values to others, but we can not shoot the photo again because we are at home in front of your computer . If we had just a bit JPG image could change the truth, but if we would open a RAW then, bring the necessary changes, and by that time we would get our final JPG image, and on the computer.
The RAW are therefore a kind of "negative", a source file which we can obtain the final image that will always be JPG.
What are the advantages of shooting photos in RAW mode?
All professional photographers shoot in RAW mode. In all forums and events where you can find professional photographers, journalists, photographers, models, etc., Ask them what format they use, I say RAW.
Why? What advantages it gives me the RAW format?
Image Quality: The RAW fotmato not compress the picture as does the JPG. With a RAW picture can be sure we capture all the quality possible.
Allows subsequent changes, adjustments, upgrades: With RAW format you can change almost everything in the photo. Except for details like the frame, the arrangement of objects / subject, etc., Almost everything else can change it later, you can give more exposure photo (light), changing the white balance, give more warmth or colder , change saturation, etc. For example we know that for a photo shoot in low light conditions often use high ISO, and that makes the picture has noise in the darker parts. Well, thanks to the RAW format can safely from the comfort of our computer desk suppress the noise, thanks to the possibility that offers RAW mode.
Then you have some examples of photos I took in RAW format and the way they looked in the BEFORE and after they are processed. You will see that the RAW format is amazing.
RAW mode Disadvantages:
But if you decide to take pictures in RAW will not all be advantages. Let's see:
Space on the memory card: RAW format, to be "raw" and uncompressed, we take up much more space on the memory card JPG format. Where there are 400 pictures JPG at best only fit 110 RAW photos.
Cumbersome process of post: Initially cool to take pictures in RAW and work later in the computer, but after a while begins to look like an ominous task, long and boring. Because if you shoot in RAW you can only use, send, publish and share once you have processed the computer.
The RAW format is not unique and universal: The JPG format is unique and universal. All JPG's are equal, all programs opened and read JPG in the same way. Not so with the RAW because each camera has its own way of doing RAW. For example, Canon's RAW are different from Nikon's RAW. This poses a problem of compatibility. Many warn that a RAW picture could open and use today, but within 7 years may not be, as manufacturers update their software and sometimes change of RAW, so the RAW before you no longer serve you .
Who is indicated RAW?
If every time you do a photo shoot come back with 200 or 300 photos, forget about RAW, since having the computer to process 200 or 300 photos at a time can be time consuming. However, if at all do you shoot about 100 photos or less, you might want to shoot in RAW. If you like to display your photographic work in the computer and spend time, work your photos one at a time, then RAW is definitely what you need.
If you have very little memory card or need more space then you will not be a good idea to shoot in RAW, because it is a format as we have said before takes more memory, for those cases best to shoot in JPG. On the other hand if you're slack space on the memory card does not skimp on RAW.
Another good indication of whether the RAW format is right for you or not is to ask the question "What do I want RAW format?" If you find an answer to this question, well, go ahead, shoot in RAW, but if the opponent does not know what you want, if you shoot in RAW but in the end do not take out any profit, then you might be better to continue with JPG and you're done.
This has been a first approach to this format, still unknown to many. Despite the many advantages of RAW format I preferred presentároslo with some caution, I do not want you should hurry and begin to shoot in RAW for no reason .. Many people shoot pictures in RAW but do not know exactly why. I most of the photos I shot in RAW I do. If you are interested in more in detail this wonderful world of RAW I invite you to continue reading next week. Much deeper into the RAW format and will teach you some programs and tools to open the RAW file and work / processing in the computer.
For now go out into the street and make 2 or 3 pictures in RAW and go home. Surely you will find that your computer can not open them. Next week I will explain how to open RAW and how to work.