Hi. My name is*****'m a camera repair technician with over 20 years in the business and I'll be glad to help you with your question today.
If the viewfinder is dimmed, that usually means the lens is stopping down during focus and metering. This would account for both the focus and metering errors.
The 1D's are equipped with a stop-down button at the bottom of the mirror box. Please check to see if this is stuck.
Hi Rick. Tried that. Not that.
Camera simply won't focus- tried various Canon lenses. Metering always blows out- especially when shooting vertically- in portrait orientation.
For the same scene metering is completely different- shutter speed 1000 for landscape- 250 for portrait- all utterly out of focus.
Got a Canon 50mm 1.8 on so I could see and no- it isn't stopped down.
Stop down button is functioning correctly and without sticking
Yup- the diaphragm is stopping the correct amount down when you press the stop down button.
I think I may have used the wrong term. The viewfinder image is unclear- foggier (?) especially towards the top of the frame. It appeared 'dimmer' earlier as I was out shooting a football match in bright sunlight.
When looking through the viewfinder when focusing- everything is now out of focus and although the camera drives the lens to focus it does not do so. The images taken are out of focus and over exposed too.
See you back in a few hours! Thanks for your help so far too
Where did you go to Rick? Thought you were coming back after a few hours?
No problem. Great to have you back!
Exposure comp is and always has been at zero. I shoot sports so practically never use comp.
Found the series of shots where the camera went loco.
Shooting using a Canon 70-200 f4L at f4, ISO 400. 14th frame of an 8.5 fps burst at 1/1600. 15th drops the shutter speed to 1/200. 16th to 1/25th! Basically a white frame. (All focused on two football players within ten yards of me. No real change of light in the scene at all)
After that nothing is focused and all the metering is wrong- always underestimating the shutter speed.
Tried a reset- clearing settings, removing all batteries including clock. No change.
Normally shoot evaluative- but have tried the other metering modes and the problem remains the same- focus and metering are off.
Thanks for our help. Most of the service centres in the UK no longer repair mkii's because of their age- but I've got some camera shop friends who might be able to steer me in the right direction!
Thanks again! Kind regards