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Canon ISO

  • 01-09-2010 11:55pm
    #1
    liberxiii
    Closed Accounts Posts: 6 ✭


    someone said to me that the ISO can be cracked/upgraded on the Canon DSLR's. is this true?


Comments

  • #2
    magicbastarder
    Moderators, Category Moderators, Arts Moderators, Sports Moderators Posts: 50,269 CMod ✭✭✭✭magicbastarder


    what do you mean by upgraded? there's usually a dial for doing that.


  • #3
    oshead
    Closed Accounts Posts: 2,131 ✭✭✭oshead


    magicbastarder wrote: »
    what do you mean by upgraded? there's usually a dial for doing that.

    The OP probably means cracked with a third party firmware upgrade.


  • #4
    Fajitas!
    Registered Users, Registered Users 2 Posts: 16,624 ✭✭✭✭Fajitas!


    I remember the 300D's firmware could be altered to be essentially the same as a 10D, and something about the G9 or G10, but I haven't heard anything else in recent years.


  • #5
    DaireQuinlan
    Registered Users, Registered Users 2 Posts: 6,703 ✭✭✭DaireQuinlan


    oshead wrote: »
    The OP probably means cracked with a third party firmware upgrade.

    WRT the OP though, what do you mean by 'upgraded' ? Performance at different ISO levels is as much a function of the physical attributes of the sensor as anything else, not much you can upgrade there without swapping out the sensor. If the OP is just talking about being able to select higher ISO settings than currently allowed then yeah, I guess there might be some firmware hack for that, but the manufacturer generally sets an upper limit on the selectable ISO values for a reason ...


  • #6
    oshead
    Closed Accounts Posts: 2,131 ✭✭✭oshead


    DaireQuinlan wrote: »
    but the manufacturer generally sets an upper limit on the selectable ISO values for a reason ...

    Helps sell more cameras... :)

    Isn't incamera software also used to reduce noise?


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  • #7
    hmboards
    Registered Users, Registered Users 2 Posts: 345 ✭✭hmboards


    There's a custom function on the 40D menu to expand the highest ISO from 1600 to 3200. Perhaps this is what the OP is referring to.


  • #8
    charybdis
    Registered Users, Registered Users 2 Posts: 802 ✭✭✭charybdis


    I believe there was a hacked firmware available for the 400D that expanded the ISO range to ISO 3200, allowed the ISO to be set in thirds of a stop increments, and enabled spot metering.

    A quick Google reveals this.

    I think there have also been hacks for the 40D that allow video to be written to the CF card and a hack for the 300D that enabled the functions available in the 10D, including an increased ISO range.
    DaireQuinlan wrote: »
    WRT the OP though, what do you mean by 'upgraded' ? Performance at different ISO levels is as much a function of the physical attributes of the sensor as anything else, not much you can upgrade there without swapping out the sensor. If the OP is just talking about being able to select higher ISO settings than currently allowed then yeah, I guess there might be some firmware hack for that, but the manufacturer generally sets an upper limit on the selectable ISO values for a reason ...

    I assume the increased ISO is a result of a bigger voltage amplification in the A/D converter. It'll have a poor signal/noise ratio, but it might be better than underexposing and trying to correct in post.


  • #9
    liberxiii
    Closed Accounts Posts: 6 ✭liberxiii


    liberxiii wrote: »
    someone said to me that the ISO can be cracked/upgraded on the Canon DSLR's. is this true?




    I have a 500d with a max ISO of 3200, is there a firmware hack to push the ISO up? Sorry about been unclear.


  • #10
    Paulw
    Registered Users, Registered Users 2 Posts: 13,381 ✭✭✭✭Paulw


    liberxiii wrote: »
    I have a 500d with a max ISO of 3200, is there a firmware hack to push the ISO up? Sorry about been unclear.

    Highly unlikely, unless you just want grain in your images.


  • #11
    hbr
    Closed Accounts Posts: 760 ✭✭✭hbr


    liberxiii wrote: »
    I have a 500d with a max ISO of 3200, is there a firmware hack to push the ISO up? Sorry about been unclear.

    No hacking is required. Just enable extended ISO in the menu. This
    allows you to select ISO 6400 and 12800.


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