Fine, normal, and economy mean when referring to a digital camera?

Posted on 2007-07-23
Last Modified: 2010-04-27
What does fine, normal, and economy mean when referring to a digital camera?  I can shot any of these without changing the resolution (10M).  Is it the number of colors or what?  File makes file about 3 times the size of economy.
Question by:schmir1
    LVL 4

    Accepted Solution

    Normaly, it's the level of your JPEG compression!

    Author Comment

    Here is what the manual says:

    The "Fine" setting helps to bring out details when shooting a finely detailed impage of nature that includes dense tree branches or leaves, or an image of a complex pattern.

    Great but how is this done?

    Author Comment

    So compression means that what, the more the compression the more interprolation that is being done?  So transitions between to patterns become less well defined (like hair).
    LVL 4

    Expert Comment

    Do you know how compression work?

    Imagine you PIC  like a chess board...
    in the first cell,   if there is 10 differents red, it make 2 or 3 reds
    do it with all CMYK colors
    do it in all cells (make independant color palet)

    because of this you can lose some details (range of colors) (shadows)

    You 10M is only the number of pixels you'll take from your snapshot

    LVL 8

    Assisted Solution

    What they do is combine like colors to save the space, losing some of the detail.  Here is a great article that explains this and a lot more:

    Check out the whole article for even more info.

    LVL 4

    Expert Comment

    If you compress a PIC with a software  (like photoshop).  You'll see those sqares!!

    Author Comment

    I did know about data compression based on repetition but not on irrelavancy.  Thanks LocoTechCJ for the article.

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