« on: July 03, 2014, 02:02:19 PM »
Honestly, Dylan...the specks did drive me nuts. I went asylum crazy this afternoon and removed the focusing screen and attempted to remove the superimposed display. I only got as far as removing the upper bracket (the one you see when you take the lens off with the two little screws holding it in place).
As soon as I got the bracket off I realized I was in over my head with this camera maintenance wise. I blew some air at the superimposed screen, got one speck of dust off and attempted to put the bracket back. First the bracket fell into the camera...and was caught by the focusing screen bracket which was already dropped down; saved my mirror. Then, after using tweezers to pull the bracket out a screw fell on the floor. 3.5 hours later, I found it!!!! w00t!
The downside is I managed to get my second speck of dust back in behind the superimposed display during the whole ordeal. So I basically accomplished nothing, other than learning my mental breaking point. lol
This afternoon has been one of the most hilarious and frustrating episodes of my life in recent memory. My friend came over and told me I'm deranged; I tend to agree at this point.
I'd send it into CPS, but I have some events coming up that I need the camera for...and Canon Canada is sllllooow to return things, even with their 5 day turn-around for CPS Gold members. I'll just tough it out and hope the specks go away. I'm sure that in the course of the camera's life it'll only get more.
I take it the specs are black and rather well defined? They're not vague blobs like normal dust.
Anyway, I know the feeling and recognize the spec issue with my 5D MkIII (I never had these specs in my MkII). When I got the camera I tried to blow out the specs with a rocket blower; was nervous enough to forget I was wearing a really dusty sweater that I really shouldn't wear when opening the front of the camera. During that exercise a tiny hair seemed to have wedged itself in a corner of the focusing screen.
Luckily I managed to stop myself at that point before I managed to make things worse. I've now accepted it and try not to look for specs as long as it doesn't affect image quality (sensor dust) or if it's really something big and annoying like the piece of thread/dust I got on the focusing screen after a lens change in Japan. I managed to live with that for two days (imagine the self restraint) until we were staying in a place in the mountains where the air war very clear and fresh, and then I took a rocket blower to the focusing screen + all the back elements of my lenses when I was sitting on the balcony of our accommodation. I was stoked that I managed to blow out that piece of dust with no effect on the sensor... but the original specs remained of course. They seem to behind or even in the viewfinder LCD screen or thereabouts. Out of reach though but also out of harm's way. Because if they're that stuck, the're not likely to find their way to the imaging sensor.
What helped me now it to see the focusing screen as a dust collector that protects the sensor. As long as the dust is on there doesn't find its way to the sensor and can be removed every once in a while, then it's doing this job admirably.
So camera's are like life; they're just not perfect; and that can be hard to swallow for us perfectionists
Thank you for the thoughtful response. You're absolutely right; one needs to learn that nothing is perfect.
It's funny you say you had the speck issue with your 5D3 and not your 5D2 because I actually have had the exact opposite experience with those cameras. I did develop a speck with the 5D3, but it eventually went away like Neuro's (and it was well enough off to the side that I was able to ignore it). With my 5D2 I took out the focusing screen, the shims and the superimposed plate just to clean it. It took a few tries, but I eventually got all the dust. Working on that camera was relatively simple in comparison to the 5D3 and 1DX.
Anyways, looking up at the sky with the lens attached, or looking at a bright light, I can actually see a few more dust particles in the viewfinder area than I originally noticed. I must have blown them up there inadvertently. Or maybe the camera came that way from the factory? Who knows...dust is everywhere and now I'm hypersensitive to it in the camera.
Looking online for what Canon does for viewfinder cleanings I've found that they don't consider it a warrantable issue anyways. They consider dust in the camera as being related to user error and they charge close to $300. So this is definitely something I am going to learn to ignore unless the viewfinder gets so many black spots that it becomes a real problem.