Raw files Image

Discussion in 'Photography Talk' started by wiseowl, Sep 23, 2012.

  1. wiseowl

    wiseowl Amiable Admin Staff Member

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    I have set my camera to take raw images for the foreseeable future just to see how I get on,this is my first one:)

    [​IMG]
     
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    • Steve R

      Steve R Soil Furtler

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      That one has come out very pixelated Woo, did you save it at a very low quality?

      Steve...:)
       
    • wiseowl

      wiseowl Amiable Admin Staff Member

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      Hi Steve its my very first attempt I saved it in the highest quality ,its just getting used to the bayer array and not over sharpening to much:)
       
    • Steve R

      Steve R Soil Furtler

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      I've never heard of it let alone used it so cannot offer any advice to you on this one Woo. I've used quite a few RAW converters and they all produce a similar result, if used lightly. Good luck with the playing!

      Steve...:)
       
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      • wiseowl

        wiseowl Amiable Admin Staff Member

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        Hi Steve thank you my friend:)
         
      • strongylodon

        strongylodon Old Member

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        Could you explain RAW as against jpeg I'm sure my camera has that option but what difference does it make, is it only for using with editing software?
         
      • ARMANDII

        ARMANDII Low Flying Administrator Staff Member

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        Hi Strongy, Jpeg [Joint Phototgraphic Experts Group] is a way of compressing the image the camera takes. By doing so there's a bit of a trade off between the storage [size of the file] and image quality. Usually there's a 10:1 compression and you don't really see the drop off in image quality. Also the most commonly used compression is JPEG/Exif which nearly all Web sites accepts. The camera using it delivers a very punchy and bright image which the camera manufacturer thinks the customer wants.

        RAW is where the camera only does minimal processing, which is why they're called RAW. But the RAW image/file is larger and has more detail in it which can be processed in a RAW converter. You can also think of it as a digital negative as you have to process it before you convert it to a positive file/image. Or at least that's what I was taught and understand it.:dunno:
         
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        • Jack McHammocklashing

          Jack McHammocklashing Sludgemariner

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          I can see I am going to be the Course dullard :-(

          Edit oops I see you are NOT on the course, I will still be the course dullard
          though

          Jack McH
           
        • ARMANDII

          ARMANDII Low Flying Administrator Staff Member

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          Just think of it, Jack, that a JPEG image is one that your camera processes inside itself to give you a nice, sharp, bright, colourful image but not which is not exactly a true image of what you were taking.....while a RAW image is one that the camera registers as exactly what it sees, the bonus being more detail being recorded.....and it allows you to tweak it to a customised image.:snork:
           
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          • JWK

            JWK Gardener Staff Member

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            Blimey Armandii, my brain hurts already.

            Iin the course, I'm going to be sitting at the back behind Jack.
             
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            • Dave W

              Dave W Total Gardener

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              Armandii has said it all, but here's my tuppence worth.
              The one single advantage of taking photos in RAW format is that the RAW image file contains a great deal more data about the image and offers more opportunities for fine tuning. I've just had a look at one of my RAW image files and it's 130MB but after conversion to jpeg it's only 10.9MB, now that's 119MB of image data that's been junked in the conversion process. It's hard to spot any difference between the two images but if I wanted to do any processing/tweaking the RAW image would afford me greater control over fine adjustments.
              The big disadvantage of RAW files is that for one RAW file on your HDD you could store around 10 jpegs. I work in RAW on my DSLR but tend to convert to jpeg for the majority and only keep the original RAW files for shots I think I may want to return to for competions or printing.

              The Exif data Armandii mentions is what's known as meta data i.e data that describes data. In the case of image files these data usually describe what camera was in use, the lens, focal length, aperture, speed, time and date and many other things. If the camera is equipped with a GPS facility it will also record latitude and longitude and possibly the direction the camera was pointing. To view Exif data you need to use photo editing software.
               
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              • ARMANDII

                ARMANDII Low Flying Administrator Staff Member

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                Nobody going to be sitting at the back of the class, I assure you. You only need to understand and learn as much as you need or want. Photography is to be enjoyed and not something to beat your brain out with:heehee: . If you can understand the basics and learn how to shoot with your camera and get shots that you like then unless you want to go further then that's it!!! The KISS principle is a good one [originated by a guy called Kelly Johnson at the Skunk Works in America] which stands for "Keep It Simple, Stupid", and I'm sure the course will be run as simply as possible.
                 
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                • al n

                  al n Total Gardener

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                  I'll be sitting in the corner of the room next door then!!!
                   
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                  • strongylodon

                    strongylodon Old Member

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                    Thanks for that guys, I guess I will stick to jpegs as apart from cropping and lightening a backlit subject I usually leave images as they are.
                     
                  • ARMANDII

                    ARMANDII Low Flying Administrator Staff Member

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                    It's all a matter of personal choice, strongy, and, to be honest, seeing the pics you have taken I don't think you need the RAW format because they're of such a high standard.:coffee:
                     
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