Canon 20D - Error 99 - How common

Discussion in 'Canon' started by Cockpit Colin, Nov 8, 2005.

  1. Hi all,

    I've now had 2 Error 99 lockups with my 20D - both with a 24-70 F2.8L

    I'm curious as to how common an issue this is - they're probably 1000 shots
    apart, so I'm not overly concerned - would be great to know if other 20D
    users are occasionally striking this issue.

    PS: I'm aware of the Error 99 issue with the 70-200 F2.8L IS USM lens.
    Cockpit Colin, Nov 8, 2005
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  2. Cockpit Colin

    Douglas... Guest

    Error 99 is for unspecified problems encountered ...which the camera
    cannot identify. It's not specifically a lens issue. It could be a flash
    card or camera flash. Even a battery connection problem. 1k shots apart
    is pretty normal for a 20D, I'd think.

    Even with all the firmware patches and parts recalls, 20Ds remain one of
    the most problematical DSLRs Canon have made. If you get a 1000 clicks
    without hic-up, you are doing well mate!
    Douglas..., Nov 8, 2005
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  3. I bought my 20D in February and it's milage is over 17000 shots. I have had
    the Err 99 about 2-3 times. Several months since last time. I have not had
    the error after I upgraded to firmware 2.0.2.
    Jørn Dahl-Stamnes, Nov 8, 2005
  4. Cockpit Colin

    turbo Guest

    If the camera hasn't been 'doctored' with upgrades, or used with 'odd'
    lenses then its usually the gold contacts that connect the camera to the
    lens. Carefully clean them with some proper cleaner ( don't take the gold
    off!!!) and lint free cloth, and don't forget to clean the chromed
    connection ring around the outside-both on camera and lens, as this forms
    the return connection for contact with the lens electronics...If you are
    using Sigma lens get it re-chipped...
    turbo, Nov 8, 2005
  5. Cockpit Colin

    Skip M Guest

    Like Douglas says, Err99 is not always a lens related lockup. We've gotten
    it on our 20Ds with a Quantum flash module that was failing, for instance.
    It can also come from dirty lens/camera contacts.
    And I believe the Err99 issue is with the non IS 70-200 f2.8L lens, not the
    IS version.
    Skip M, Nov 8, 2005
  6. Cockpit Colin

    mr_maserati Guest

    I've taken about 4000 shots with out a single problem.
    But, I'm using Canon lenes.

    mr_maserati, Nov 8, 2005
  7. Cockpit Colin

    Tony Polson Guest

    Since when was the 24-70mm f/2.8L not a Canon lens?
    Tony Polson, Nov 8, 2005
  8. Thanks for that. I've had one of my errors under 2.02 - and (I think) the
    latest under 2.03.
    Cockpit Colin, Nov 8, 2005
  9. Thanks for that. I've got a feeling that we discussed this once before. I
    can only go by what I read on another board, but on that occasion they were
    definately talking about the IS version - the gist of the thread was that
    the error went away is IS was switched off.
    Cockpit Colin, Nov 8, 2005
  10. I only own Canon lenses (all 2 of them) (plus a converter) - Only use canon
    accessories too (apart from 2 batteries).
    Cockpit Colin, Nov 8, 2005
  11. Thanks for that - 'unfortunately' the camera hasn't been doctored - only
    ever used with Canon lenses - and the contacts are in pristine condition
    (everything is new).

    It sounds like just one of those things that the model does every few
    thousand shots.
    Cockpit Colin, Nov 8, 2005
  12. Cockpit Colin

    Photographer Guest

    what teleconverter do you have? I've been wanting one but not sure what to
    get. I have Canon lenses too.

    I only own Canon lenses (all 2 of them) (plus a converter) - Only use canon
    accessories too (apart from 2 batteries).
    Photographer, Nov 8, 2005
  13. Cockpit Colin

    Skip M Guest

    Hmmm, missed that day... <G> Well, the one Douglas mentioned a while back I
    thought was the non IS version, but I could be wrong. We haven't had any
    issues with the IS version, but its time has been limited on the 20D.
    Skip M, Nov 8, 2005
  14. Cockpit Colin

    Kelly B Guest

    I've had lock-ups with the 20D and the 70-200L IS version. Usually it
    seems to happen when shooting RAW+JPEG and you try to delete a shot. I've
    switched to RAW only and have had no further problems, with the exception
    of one hot day at an airshow--after 2 hours walking in the sun it started
    locking up, removing & replacing the battery resolved the issue.

    Kelly B, Nov 9, 2005
  15. Cockpit Colin

    Skip M Guest

    Well, like I said, the time the 70-200 f2.8 IS has spent on a 20D for us has
    been limited, so I ain't gonna comment on lockups with that camera/lens
    Skip M, Nov 9, 2005
  16. I also got the 70-200/2,8 IS and I had one lockup with that lense once. I
    had to remove the battery for some seconds before the 20D began working
    Jørn Dahl-Stamnes, Nov 9, 2005
  17. How common ... I'd guess about 5% of 20D owners have had this problem. My
    guess is based on reading posts and responses in the news groups and the 20D
    forum on dpreview. Some seem to think it occurs under high current demand
    situations (seems to happen more often with IS lenses). Clean the battery
    contacts too and, if necessary, try another battery.
    Charles Schuler, Nov 9, 2005
  18. I only have the 2.0x teleconverter at this stage. I'll probably get a 1.4x
    too at some stage (just to "complete the set"), but it really doesn't give
    me any additional range that I haven't more-or-less got covered at the
    moment, and the additional F-Stop is no big deal to me.

    Keep in mind that it's only compatible with certain lenses - and
    specifically theres a difference between the 70-200 F2.8L IS and non IS
    versions when it comes to which AF points can be used.
    Cockpit Colin, Nov 10, 2005
  19. Thanks for that. Interestingly, the first time it happened was after I'd
    taken a shot with an exposure time of greater than 1 sec, and the anti-noise
    cleanup process should have kicked in (forget the proper name) - after that
    it should have displayed the photo, but never got that far.

    2nd time was during a burst of "rapid fire" shots. I always have the battery
    brip with 2 high-capacity batteries installed (and it's one of the good
    serial numbered grips) - so I doubt there's any probs with power supply.

    At the end of the day, it's probably just a few bugs in the ROM that crashes
    the Ooperating system from time to time.
    Cockpit Colin, Nov 10, 2005
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