Canon 40D Mirror Problem, won't come down!

Discussion in 'Beyond the Basics' started by WhineAndDine, Aug 5, 2010.

  1. WhineAndDine

    WhineAndDine TPF Noob!

    Joined:
    Apr 28, 2009
    Messages:
    94
    Likes Received:
    0
    Can others edit my Photos:
    Photos NOT OK to edit
    Hi everyone. When I press the button to take a picture, I hear a click and then nothing happens. The mirror stays in the up position and never comes back down. The LCD screen is black and nothing appears on the topside LCD. Camera is unresponsive to any pushes of buttons.

    The only way to make it reset is to physically remove the battery for a few seconds and then reinsert. At this point the mirror finally comes down. What the heck is happening to my beautiful camera?!!!?!?!?!

    Before you say its in mirror lock up mode.....it's not.

    And it isn't taking a super long exposure either....

    It does this even in Full Auto mode.


    I took the lens off to inspect what's going on. Basically when I push the shutter button the mirror comes up, and decides to stay there. It never goes back down.


    The camera has sat for a few months without any photos being taken.

    Im really hoping someone here knows exactly what the problem is.

    Any help would greatly be appreciated.
     
  2. Derrel

    Derrel Mr. Rain Cloud

    Joined:
    Jul 23, 2009
    Messages:
    35,456
    Likes Received:
    12,796
    Location:
    USA
    Can others edit my Photos:
    Photos OK to edit
    I wish I could help you with the problem...

    There is a tool that you could use, and with proper application of it, you'd forget all about that minor "mirror sticking in the up position" problem. Three or four passes with this adjustment tool,and she ought to be good as new! Perhaps some others will have some good ideas on how to fix the situation. Sorry to hear about it--it is a major bummer when a fine camera like the 40D conks out or goes out of whack....I've been there man...it sucks.

    http://www.faqs.org/photo-dict/photofiles/list/2754/3663claw_hammer.jpg
     
  3. Overread

    Overread has a hat around here somewhere Staff Member Supporting Member

    Joined:
    May 1, 2008
    Messages:
    23,095
    Likes Received:
    3,763
    Location:
    UK - England
    Can others edit my Photos:
    Photos OK to edit
    First move I would do is reset all the cameras settings to default just to make sure there is no custom mode enabled (even though you've checked for mirror lockup do try a reset anyway).

    After that make sure that the batteries are fully charged up

    Then try cleaning the contacts to the lens - clean both the little copper coloured contacts on the lens and on the inside of the camera lens mount. Sometimes communication problems can cause odd errors.

    However is the problem still keeps occurring I'm going to suggest that it could be mechanical and that means the only way to get it working is a trip to the repair shop.
     
  4. Dao

    Dao No longer a newbie, moving up!

    Joined:
    Mar 24, 2008
    Messages:
    6,252
    Likes Received:
    418
    Location:
    St. Louis
    When the mirror stay up, did the shutter curtain closed or opened?
     
  5. WhineAndDine

    WhineAndDine TPF Noob!

    Joined:
    Apr 28, 2009
    Messages:
    94
    Likes Received:
    0
    Can others edit my Photos:
    Photos NOT OK to edit

    It stays shut
     
  6. Weetabix

    Weetabix TPF Noob!

    Joined:
    Aug 28, 2010
    Messages:
    1
    Likes Received:
    0
    Location:
    London
    Can others edit my Photos:
    Photos NOT OK to edit
    I'm experiencing the same problem with my Canon 40D. Tried upgrading to firmware 1.1.1, but that didn't help.

    Were you able to find a solution?

    Thanks.
     
  7. KmH

    KmH Helping photographers learn to fish Supporting Member

    Joined:
    Apr 9, 2009
    Messages:
    38,229
    Likes Received:
    5,006
    Location:
    Iowa
    Can others edit my Photos:
    Photos OK to edit
    It is malfunctioning and the solution is to send it in for repair.
     
  8. WhineAndDine

    WhineAndDine TPF Noob!

    Joined:
    Apr 28, 2009
    Messages:
    94
    Likes Received:
    0
    Can others edit my Photos:
    Photos NOT OK to edit


    Took it to a repair shop and they said it's something they are seeing more and more. Canon hasn't recalled it, but the repair shop says everytime someone brings in a 40D, it's because of this issue.
     
  9. KmH

    KmH Helping photographers learn to fish Supporting Member

    Joined:
    Apr 9, 2009
    Messages:
    38,229
    Likes Received:
    5,006
    Location:
    Iowa
    Can others edit my Photos:
    Photos OK to edit
    Or the ERR 99 problem.

    Or the low shutter count, shutter failure problem (which also generates a ERR 99 code).
     
  10. den9

    den9 TPF Noob!

    Joined:
    Dec 8, 2007
    Messages:
    572
    Likes Received:
    3
    Location:
    Doylestown, PA
    i blew my breath into my D50 once and it fogged up really bad, and my camera locked up. Just about to use the camera for christmas I was pretty pissed and didnt want to send it to repair for months so i grip the camera hard smacked the side of the camera really hard with my fist and the shutter dropped. alittle bit of anger does wonders
     
  11. AverageJoe

    AverageJoe TPF Noob!

    Joined:
    Sep 16, 2007
    Messages:
    918
    Likes Received:
    4
    Location:
    Minneapolis, MN
    Can others edit my Photos:
    Photos OK to edit
    Have you tried turning on or off Live View mode? Since Live View activates or de-activates the shutter.
     
  12. Bensphotos

    Bensphotos TPF Noob!

    Joined:
    May 13, 2011
    Messages:
    4
    Likes Received:
    0
    Location:
    microsfth8er@aol.com
    Can others edit my Photos:
    Photos OK to edit
    I have the 40D and luckily I bought a 4 year warranty through amazon.com. I am sending in my camera for the third time to fix the mirror sticking again. I have reset everything many times. Reinstalled the firmware. but it keeps doing it. If it happens a 4th time I am going to demand a new camera. The second time it happened was during a wedding. I will post again to let you know if it happens again. I personally think it has something to do with the servo motor or the chip that controls it. The first time it happened was only in the first 2 months of owning it.
     

Share This Page

Search tags for this page
40d mirror not working
,
40d mirror stuck
,
cannon 40d mirror issues
,
canon 40d mirror lock-up problem
,
canon 40d mirror lockup
,
canon 40d mirror lockup malfunction
,
canon 40d mirror problem
,
canon 40d mirror repair
,

canon 40d mirror stuck

,
canon mirror stuck