The image on my viewfinder starts off ok and then after a few minutes becomes out of focus and doesn't rectify itself. The auto focus is on and it has always worked in the past. I have tried manual focus as well and I have tried zooming in and out but nothing seems to work. Along with the blurred image, and error code E61:00 appears.
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Adjust the viewfinder diopter to match your eye. Remove the rubber eyecup by grasping both sides and sliding it up. Turn the little knob to the left of the viewfinder until the focus points or center metering circle appear sharp. Replace the eyecup.
Two possible situations. It might be that the lens focusing system isn't working. Try focusing by hand (turn the lens manually) If the image moves through a point of sharp focus, then you have a lens or focus motor problem.
More likely, you have improperly adjusted the diopter. There is a small, circular wheel on the right side of the viewfinder, toward the top corner. It is sometimes covered by the rubber viewfinder hood so you might not notice it. This adjusts the diopter correction in the viewfinder and if it's set wrong, nothing will ever look in focus. The pictures would be fine, but since the diopter is a correction for your eyesight, the viewfinder will be out of focus.
Check the mirror. The image you see in the viewfinder comes through the lens, and is reflected by the mirror. If it's dirty, it will affect the image you see. When you take the picture, the mirror lifts up, the viewfinder image is interrupted, and the light from the lens goes to the image sensor. So...if the mirror is dirty, the picture will be fine but the viewfinder image will be dark or out of focus.
There is a little wheel nest to the viewfinder on the camera. It is called something like dioptric focus (forgive me I am going off of what I heard pronounced) and it allows you to manually set the focus to your eyesight. Just adjust the wheel while looking through the viewfinder and you should be set.
Hi I would not attempt to open the camera for any sort of fix. It has weather seals in place and would recommend sending it in to Canon. If you have any warranties left it would void these. Lastly this is a high proformance bit of kit and you want to get is seen to by an Authourised Canon Dealer.
As for the diopter adustment. To be able to see through the view finder and see your subject clearly, take of the lens cap aim the camera and turn the little dial until the screen inside the viewfinder is clear it should not be fuzzy. You are only looking at the screen/gring and not the image beyond. This does not affect your image but does effect how clearly you see your subject through the viewfinder.
I don't have my camera with me, so I may be off on the exact placement, and I hope I'm not telling you something you already know and the problem is worse, but on the left side of the viewfinder itself is a tiny dial that adjusts the focus. Just look the the viewfinder and play with the dial to adjust to your eyesight.
Now look on the LEFT side of the viewfinder; just above the swivel-screen.
You will see a little thumb wheel there.
That is the focus for the viewfinder. Move it up and down to bring the viewfinder into focus. (Don't forget to do this while you are looking through the viewfinder so you can see what you are adjusting.)
Yes, You are correct, it does not seem to be problem with the CCD. Insted it seems to be with shutter control or apparture control mechanism of the camera. Normaly there is one single cable carring signal to the shutter blade mechanism and the diaphram control. If this cable is damaged it shows the same symptoms as you have described in your mail. Get in touch with an expert camera repairer.