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Thread: .RAW vs .JPG

  1. #1

    Default .RAW vs .JPG

    I have been wondering what is the differences bwt .RAW and .JPG in terms of the quality, colour output and detail.

    Can someone pls enlighten me on that?

  2. #2

    Default Re: .RAW vs .JPG

    you may wanna try googling this...

    anyway this was a interesting site which i spent some time reading...

    there are more also in this forum... try the search function

    http://www.ics.uci.edu/~eppstein/pix/rawvsjpg/
    P&S: Sony U20, Pana-leica FZ5, Canon S90, Pana DMC-T3
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  3. #3
    Senior Member zac08's Avatar
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    Default Re: .RAW vs .JPG

    Quote Originally Posted by johnmaeda View Post
    I have been wondering what is the differences bwt .RAW and .JPG in terms of the quality, colour output and detail.

    Can someone pls enlighten me on that?
    If you bothered to do a search, then you'd have found out that RAW holds all the data which was taken at the time of the picture and you can actually have more leeway to manipulate those data to adjust exposure, saturation and other details.

    Jpeg is a highly compressed version of that same picture which losses a whole lot of detail and does not allow much manipulation of the exposure or other details.
    Michael Lim
    My Flickr Site

  4. #4

    Default Re: .RAW vs .JPG

    Raw is a file format
    It is Lossless.

    It cannot be changed or altered (till today only :P)
    Has better dynamic color range (like 12 bit - 14bit per channel)
    Better color interpolation in some s/w
    It is an electronic negative
    Can fully control of all settings
    No compression artifact
    Can easily correct exposure mistakes (+-3 stops)

    JPEG is a Image format
    It is a higly lossy.

    Every time u save it, it compress further
    Even thought the pixel no remains the same, but your color depth keep losing info


    In the end of the day, if u are printing 4X6 photo, dun bother about RAW

    There are always diff workflows to follow
    That's depend on what u wan to achieve

  5. #5

    Default Re: .RAW vs .JPG

    As an analogy, try thinking of the RAW image as the digital negative while jpeg as the printed image.

    The raw image is the raw information pulled from the camera's sensor right off the bat without any processing (at least very minimal). A jpeg on the other hand, is the image pulled from the sensor AND processed by the camera's internal algorithm. Because of this,if you just shoot jpeg, you loose the original information as the camera would have dropped those information that it thinks is not necessary when it creates the jpeg image. In other words, you simply have to accept what the camera thinks is "right" i.e camera is doing the thinking for you.

    In certain cases, this is fine if you are not too particular about your image. However, there are many times when you want full control of your creation from end-to-end ie from the time you press the shutter to the time when the last picolitre of ink is sprayed on your final print. Then you need the raw image where you have full control and mastery of your art

  6. #6

    Default Re: .RAW vs .JPG

    I presume in .RAW, white balance corrections/adjustments can be made?

  7. #7
    Senior Member xunjas's Avatar
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    Default Re: .RAW vs .JPG

    Quote Originally Posted by Trashian View Post
    I presume in .RAW, white balance corrections/adjustments can be made?
    Yup. tt's right, more play and convenient functions available by the software used to process the photos. Eg. lightroom.

  8. #8

    Default Re: .RAW vs .JPG

    may i ask what the dif form D80 raw+jpg?? compare to other raw from 400d,d3,d300,e-510,e410,e3.....and so on ???

  9. #9

    Default Re: .RAW vs .JPG

    ALWAYS shoot RAW unless:

    (a) you have no more CF card space
    (b) you have no time to post process your pix
    (c) you are a real pro who can get the exposure spot on each time.

  10. #10
    Senior Member giantcanopy's Avatar
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    Default Re: .RAW vs .JPG

    Quote Originally Posted by likimikuku View Post
    may i ask what the dif form D80 raw+jpg?? compare to other raw from 400d,d3,d300,e-510,e410,e3.....and so on ???

    Diff camera models have diff raw file systems
    E.g Nikon with the NEF, and Canon with their CR2 files.
    Within Nikon the NEF can have slight differences as versions cary e.g compressed NEF of the D80

    Peace
    Ryan

  11. #11
    Senior Member xunjas's Avatar
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    Default Re: .RAW vs .JPG

    Quote Originally Posted by Viewpoint View Post
    ALWAYS shoot RAW unless:

    (a) you have no more CF card space
    (b) you have no time to post process your pix
    (c) you are a real pro who can get the exposure spot on each time.
    and no enough HDD space to store RAW.

  12. #12

    Default Re: .RAW vs .JPG

    Can I safely say that at least 99% of us in HERE do not go into RAW simply because there's no need to do so and all we want are the digitial images taken ?

  13. #13

    Default Re: .RAW vs .JPG

    I would say that at least ~25% of all forum members shoot extensively in RAW... of course I'm just guessing... could be more...
    Last edited by theRBK; 22nd December 2007 at 07:08 PM.

  14. #14
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    Default Re: .RAW vs .JPG

    Quote Originally Posted by theRBK View Post
    I would say that at least ~25% of all forum members shoot extensively in RAW... of course I'm just guessing... could be more...
    I shoot in RAW exclusively since moving to Nikon.

  15. #15

    Default Re: .RAW vs .JPG

    +1 for RAW. for two main reasons: lossless white balance correction, highlight/shadow exposure recovery.
    eyes | head | feet | flickr | APAD: straight from camera

  16. #16
    Senior Member erictan8888's Avatar
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    Default Re: .RAW vs .JPG

    if the photo is very important for you, shoot raw.
    when overseas and taking pics, shoot raw, unlesss you are going back to the same place every year...
    you dun want to mess up your pics, especially if it is a very beautiful moment...
    i once rejected raw, felt it was too bothersome to edit and ps ...etc
    but after messing up some important shots, i regretted not shooting raw
    so, now i shoot raw if i can

    if it is just a casual pic, then shoot jpeg....

  17. #17
    Member/Tangshooter zaxh81's Avatar
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    Default Re: .RAW vs .JPG

    what is the diff between processing Raw and jpeg in lightroom.
    i noticed that when importing jpeg or raw,both are able to adjust the WB,Exp etc...

  18. #18
    Senior Member zac08's Avatar
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    Default Re: .RAW vs .JPG

    Quote Originally Posted by zaxh81 View Post
    what is the diff between processing Raw and jpeg in lightroom.
    i noticed that when importing jpeg or raw,both are able to adjust the WB,Exp etc...
    More leeway for adjustment... try it out.

    Shoot 2 pics of a certain scene (let's say in poor light), 1 in RAW and 1 in JPG. See which you can bring up to the correct level.
    Michael Lim
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  19. #19
    Senior Member xunjas's Avatar
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    Default Re: .RAW vs .JPG

    Quote Originally Posted by zaxh81 View Post
    what is the diff between processing Raw and jpeg in lightroom.
    i noticed that when importing jpeg or raw,both are able to adjust the WB,Exp etc...
    lightroom has alot of convenient functions for RAW~~ =) RAW colors are more vibrant and richer than JPG. Care need to be taken for converting photos to jpg.

  20. #20

    Default Re: .RAW vs .JPG

    Quote Originally Posted by zaxh81 View Post
    what is the diff between processing Raw and jpeg in lightroom.
    i noticed that when importing jpeg or raw,both are able to adjust the WB,Exp etc...
    an image recorded in JPEG is fixed in 24-bit color (8 bits per channel - R+G+B). areas which have hit the max value (ie. clipped) are referred to as "blown highlights" and details in those areas cannot be recovered by adjusting exposure. same goes for shadow areas.

    an image recorded in RAW typically has more exposure latitude than can be recorded in JPEG (ie. more data is stored than just 8 bits per channel) - typically a stop or two above for highlights, and maybe a stop below for shadows. you can recover details from "blown" highlights, to a certain extent, using exposure correction tools.

    additionally, WB adjustment from a RAW source is a "freebie" adjustment - you're not forced to re-interpret from the limited data range of a JPEG. most noticeable when doing dramatic WB changes.


    there are a number of advantages to shooting RAW over JPEG, and make no mistake, it is a BIG jump to take. personally, i resisted for the longest time.

    the advent of tools such as Lightroom and Aperture have simplified RAW workflow management dramatically. i bit the bullet and purchased Aperture, and have not had to open up any other image-editing software for a good long while. YMMV.

    i'm not going back to JPEG shooting any time soon.
    eyes | head | feet | flickr | APAD: straight from camera

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