"flickering upon start-up"


3 Jul 2019 4:22PM
I was informed that my 4 year old Canon EOS D5 Mark3 (which is categorised as "Very light use") was flickering upon start-up and needs to be repaired . The only "movement" I can see is the flickering of the stars at the sensor cleaning process.
Has anyone any idea if ficker can be anything other than the sensor cleaning stars "Flickering"?.

Bill Smyth

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4 Jul 2019 7:31AM
Hi Bill

Not too sure exactly what your problem is, but with canon, the auto sensor cleaning if activated which it normally is by default happens when you either switch the camera off or manually request the camera to do so

If you mean that a light flickers on the back, this can happen when you either insert batteries, or when you switch it on and is normal
4 Jul 2019 12:06PM
Thank you Neil,
The diagnosis came from a camera trade-in company and I am in contact with them to provide further details.
Literally, their report said "Camera flickering on start-up". I'm not sure if they mean the sensor stars which flicker to represent a "Twinkle".

Bill Smyth
5 Jul 2019 12:28AM
Potentially sounds like spherical objects
5 Jul 2019 10:19AM
Thank You Neil,
Of course the correspondent from the company can only express the view that the inspector must have thought it was serious enough to report it (no detail).
Having involved the Canon Technical Team I was pleasantly surprised that they advised that I should

Quote:1. revert the camera back to the default settings.
2. clear the custom functions of your camera.
In order to see how to perform these functions, please refer to your manual on pages 56 and 320 respectively.

…….and it worked. At least it eliminated the only flicker I could identify as noted below -
With the INFO button pressed I can see the Shooting Settings for the various options on the Mode Dial. When the dial for Shooting Setting for Bulb is moved to Shooting Setting for C1p the screen flickers and the screen darkens. The other Screen Settings are steady when the Mode Dial is moved through the various options.


Bill Smyth
5 Jul 2019 5:33PM
Ah, don’t actually use bulb mode myself, glad you have managed to resolve it though
5 Jul 2019 7:54PM
Thank you Neil,
Have a good weekend
Bill Smyth


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