EOS 1v battery draining problem

Discussion in '35mm Cameras and Accessories' started by pekelnik, Dec 7, 2011.

  1. pekelnik

    pekelnik Member

    Messages:
    79
    Joined:
    Nov 18, 2011
    Shooter:
    Large Format
    I have a EOS 1v which I got about half a year ago off Ebay and it has a strange problem. In those 6 months I went through 4 batteries
    (while shooting maybe 10 films with it). Last time I took it out on Sunday, battery was dead. Thought I must have left it on and pushing the
    release in the bag, I got a new battery. All worked fine until I took it out of my bag today and battery dead again. This time I'm 100% sure I
    turned it off. Does anyone have any idea what to try/troubleshoot/etc? Am I doing something horribly wrong by having it in my bag? The
    lens on it was a MF Oly 50/1.4 with a chipped OM-EOS adapter. Thanks!
     
  2. MattKing

    MattKing Subscriber

    Messages:
    16,816
    Joined:
    Apr 24, 2005
    Location:
    Delta, BC, Canada
    Shooter:
    Multi Format
    Do you have a Canon EF lens you could leave on it as a test? Just in case it is a problem with the adapter.
     
  3. ath

    ath Member

    Messages:
    889
    Joined:
    Aug 29, 2006
    Location:
    Germany
    Shooter:
    35mm
    The EOS's are never really "off". They go into a kind of sleep mode and wake up periodically to drive the LCD and check the "ON" switch.
    When I get a new electronic camera I routinely check the current consumption. While checking the canons I found that even in sleep mode some button presses cause normal operating current for a second or two.

    That said I think that either you got a damage in the camera or the adapter empties the battery. On my EOS3 2 pins on the lens mount are powered when the camera is "off".
     
  4. Poisson Du Jour

    Poisson Du Jour Member

    Messages:
    4,207
    Joined:
    Jul 1, 2008
    Location:
    Richmond/Geelong, AUS
    Shooter:
    Multi Format
    The EOS 1v, like those pro-level models before it, consume a miniscule amount of battery power even when off. Any deviation certainly indicates a fault in the electronics — possibly the interface of the lens adaptor you are using. I would strongly recommend testing the camera without the adaptor and with a Canon EF or manual focus (e.g. TS-E) lens in place, with the camera used for shooting, and also turned off to observe any unexplained battery consumption. The 1v has a venerable reputation for brute strength and reliability and I do have a gut feeling from your story that something needs to be professionally checked out.
     
  5. sandermarijn

    sandermarijn Member

    Messages:
    769
    Joined:
    Oct 19, 2005
    Location:
    Leiden, Neth
    Shooter:
    35mm
    Indeed, when you mount onto an off-mode EOS camera an EOS lens that has its aperture preset to a certain value, the first thing the camera does (even in off mode) is reset that aperture to fully open. Which goes to show that EOS cameras are 'constantly' reading the lens, even when switched off. It doesn't seem entirely unlikely that the chipped OM-adapter is not giving a proper, definitive answer to the body (e.g. while in off-mode), thus draining the battery.

    [You can preset the aperture on an EOS lens by taking off the lens while holding the DOF-preview button pressed. This trick can be useful if you want to use the EOS lens stopped down on a foreign body, such as a digital Sony NEX.]
     
  6. pekelnik

    pekelnik Member

    Messages:
    79
    Joined:
    Nov 18, 2011
    Shooter:
    Large Format
    Thanks guys. I'll watch it, 3 times before I had a EF lens on it when it happened, this time was the fastest of all. I'm afraid I'll need to have it checked out as you say. Or just keep it with the battery out for some time and see if it goes away.
     
  7. Poisson Du Jour

    Poisson Du Jour Member

    Messages:
    4,207
    Joined:
    Jul 1, 2008
    Location:
    Richmond/Geelong, AUS
    Shooter:
    Multi Format
    A thorough look-in of the 1v is much, much better and reassuring than speculation. This is not a camera that would let anybody down, even if it is soaked, battered, knocked, swung, rolled or used as a lethal weapon in self-defence! :tongue:
     
  8. Chan Tran

    Chan Tran Member

    Messages:
    2,373
    Joined:
    May 10, 2006
    Location:
    Aurora, IL
    Shooter:
    35mm
    So you could have a problem with switching electronics. They can possibly failed to shut off and drain your battery. If you can verify current draw is good thing to try but I know that not everyone can do it. I think you should have Canon check your camera out.
     
  9. shutterclank

    shutterclank Advertiser Advertiser

    Messages:
    54
    Joined:
    Sep 9, 2011
    Location:
    Memphis, Pit
    Shooter:
    35mm RF
    i had one of the 1v-hs canons and i fell into the pacific ocean with it... i didnt have a lens with seals, and slat water is not a friend of electronics.

    but back on topic, do you have the hs battery or the regular one?
     
  10. markrewald

    markrewald Member

    Messages:
    139
    Joined:
    Jun 12, 2005
    Location:
    Aurora, Co
    Shooter:
    Medium Format
    I have a EOS-1n with the same problem. Got to the point I take the battery out when I am done shooting. that is if I remember to. I would love to hear of a solution.
     
  11. pekelnik

    pekelnik Member

    Messages:
    79
    Joined:
    Nov 18, 2011
    Shooter:
    Large Format
    Regular 2CR5 battery. The problem doesn't happen all the time though. The camera will sit on the shelf for month with battery at 100% and then suddenly it's dry. I can check for the current draw once I get a new batch of batteries. Maybe I should get some rechargeable ones as this is getting expensive. I'll have to wait for the check up probably as service like that is likely to be impossible or cost more than 2 1vs in Switzerland.
     
  12. Poisson Du Jour

    Poisson Du Jour Member

    Messages:
    4,207
    Joined:
    Jul 1, 2008
    Location:
    Richmond/Geelong, AUS
    Shooter:
    Multi Format
    2CR5 batteries are patently lousy power sources. Switch to AA NiCd or lith ion rechargeables. My old (retired) EOS 5 barely got 5 rolls out of a 2CR5. Enter, the EOS 1n in 1996, with power drive booster. AA lithium batteeries have been changed over just twice over that time (!) and I have no idea now how many rolls have gone through the camera. The EOS 1v by comparison should be up there with the best of the frugal power users on AA power sources, significantly less with 2CR5. I'm thinking about moisture ingress somewhere, but the 1v is darned well sealed so it seems improbable.
     
  13. pekelnik

    pekelnik Member

    Messages:
    79
    Joined:
    Nov 18, 2011
    Shooter:
    Large Format
    So the adapter seems to be the culprit actually. Just rigged a multimeter between the battery and the camera after much poking. Normally the meter shows 0 on stand-by (not sensitive enough), but shows about .1 amp draw when the chipped OM adapter is on the camera, no matter if the camera is on or off.
     
  14. Chan Tran

    Chan Tran Member

    Messages:
    2,373
    Joined:
    May 10, 2006
    Location:
    Aurora, IL
    Shooter:
    35mm
    congrat! you have gotten it! 0.1 amp is very high draw.
     
  15. pekelnik

    pekelnik Member

    Messages:
    79
    Joined:
    Nov 18, 2011
    Shooter:
    Large Format
    Yup. Normally the highest draw (focusing + IS) seems to be about .2 which makes sense, running the IS for 7 hours seems like a thing that would just about drain the 1500mAh 2cr5. Quite strange though. My non-chipped 14mm Samyang works fine.
     
  16. Chan Tran

    Chan Tran Member

    Messages:
    2,373
    Joined:
    May 10, 2006
    Location:
    Aurora, IL
    Shooter:
    35mm
    Well so now you know and it wouldn't even preventing you from using the OM adapter. You just need to remove it when you don't use the camera.
     
  17. Newt_on_Swings

    Newt_on_Swings Member

    Messages:
    2,131
    Joined:
    Mar 30, 2011
    Location:
    NYC
    Shooter:
    Multi Format
    Cool trick! I will have to try this out! I have had drain issues as well with my Canon gear. I usually just rip out the batteries and pop them in when I need the camera. But I think in my case it is the off brand grip I have on mine.

    Oh well.