now almost all cameras offer the ability to save photos in the classic format is jpg or in raw but what is the difference?
The jpg is a compressed format to save the images so that they occupy little space and is born when the memory available to users were small and expensive.
The raw is an uncompressed format that takes up much space but offers many advantages over jpg.
Firstly, it should be clear what is meant by compression of a file that could be confused with the zip-compressed files for example.
jpg When we talk about is how we speak mp3 music, both are files that take up little space, but to achieve this have to lose information.
To be more clear I do the example of a camera with 10 megapixel sensor, the raw file of this machine is great about 18Mb and the same photo in jpg will have a weight of about 5Mb . As you can see the difference is huge and all that is missing is information that was lost that can not be retrieved later.
Personally I choose depending on the size of the photo shoot, for photos that do not interest me much, those made without pretensions or just a memory I choose to have quietly while the jpg for pictures or for important pictures shooting in raw only. The reason is simple, are derived from a raw file and much more information can be recovered much more photos, you can go for example to retrieve a wrong white balance or adjust lights and shadows with precision.
The downside is that the same memory card shooting in RAW I can not save many photos but let's be honest, when we go out and we have 400 shots are already too plentiful.
To make a parallel with the analog raw as we could see the film negatives and prints as a jpg.
One thing to consider is that the raw format is not natively supported by the pc, however, be converted in jpg, slowly but are solving this problem in the computer is hard to abandon one in favor of a standard more. Bear in mind that shooting in RAW will fill your hard drive very quickly and it is advised to take into account buy an external images only to be lighter on your computer. I for example, when shooting in raw end of the day I find myself with 4-5Giga of photographs, I find myself once a month and the laptop's hard disk so I had full armarmi external disk large capacity and also much more reliable as a long life .
As always, these are personal choices, evaluated and then proceed as you like because the raw is not vital, just as well you shoot in jpg and not normally notice the differences between the two formats.
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