That was very graphic and not for the squeamish.

Hi gang. I posted 30+ more photos. Getting to the core now. Not much left to remove.

The new stuff starts here, on page 7 of the gallery:

http://www.pbase.com/gmr2048/20d-dissection&page=7

with the image "Shutter button wiring".

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-gary
http://www.eighteenpercent.net

Hi, I looked at the last pictures you posted and had the following comments (I hope someone will just correct me if I am wrong; but I think this series is too interesting to not try to gather some more knowledge ):

- I believe that sensor 1 is for metering. Moreover I remark a kind of 5x7 matrix on it, which I assume corresponds to the 35 zones metering. Opinions ?
- I would assume that sensor 2 is for metering too mainly because I do not see how sensor 1 would allow dealing with partial metering directly (or they just extrapolate it from the 35 zones ? this would not be very precise). In case you could do a macro of it, it could be quite interesting...
- The mirror in the bottom of the lens mount area probably hides the AF sensor. It would be very useful to know what this one looks like. The main mirror should let some light go through it and be reflected by the second smaller mirror to the AF sensor.
- What is the black frame in the last picture made in ?

FANTASTIC! Now I don't have to look inside mine! I am very confident my camera would never work again if I had to reassemble it! Thanks for saving me the $$$!

Yes, I thought it was like driving by an auto accident too. I couldn't help but look! So when are you going to put it up on ebay?

Another update. I'm down to the last few bits I can disassemble. The latest shots are of the dissected AF mirror/prism/sensor box, which lived at the bottom of the mirror chamber. Images can be seen here:

http://www.pbase.com/gmr2048/image/70188802

http://www.pbase.com/gmr2048/image/70188803

http://www.pbase.com/gmr2048/image/70188806

http://www.pbase.com/gmr2048/image/70188807

http://www.pbase.com/gmr2048/image/70188809

http://www.pbase.com/gmr2048/image/70188812

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-gary
http://www.eighteenpercent.net

Thanks for the detailed photos.
Just wondering how long it took you to actually disect the camera.

Nice work, it was interesting to see the inner parts of this AF module.

i can see a long post coming up in the buy and sell forum under "replacement parts for 20D"

Hahaha! Not a bad idea, Roly!

OveanView: It's been about two weeks on-and-off that I've been working on the disassembly. It's been a busy time, so I haven't been able to dedicate a ton of time to the project. The job is mostly done at this point, but I think I still have a couple of pieces to dig into (the top of the camera with the built-in flash comes to mind). I'll post again if I find something interesting!

Thanks for checking it out.

-gary

I have a question about the prism. I hear a lot about dust getting up there and wondered when you send it in for a cleaning, is that something easy to get to. Do you think Canon takes the prism out to clean it or do they just blow air up there?

Thanks for the photos. It was very interesting seeing the guts of my camera. I love your new & unique avatar.

Gary, your avatar rocks

Thanks for sharing ... it is good to see the insides, now I know what my 20D really looks like

Put it all back together now

Awesome pictures. I looked at every one. You were very meticulous about it.

Yes, when it comes to salt water you've gotta take the batteries out then throw it in fresh water or corrosion will destroy everything.

The camera without the casing attached to the lens reminds me of those body worlds exibits, where the guy slices open the bodies and poses them. I dont think i could have done what your doing. I would have thrown it away to get the bad memories out of my life. HAHA

Body World

Here is a link to a similar disection of a damaged 70-300 USM.

http://www.photoscene.com/sw/tour/inside.htm

Reminds me of Arnold in the last throes of T-2

nice project

what is the date of your 30D being dissected?

sorry.. could not help mentioning it, it's dramatic to see your precious stuff being soaked in salt water.. sigh.. and I was looking for a 20D.. think i'll skip to the next one.