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Hi Hemi,
I used to have a C11 (circa 2000), which i sold. I had to remove the corrector on that and it was a pain. There was a little black mark to re-align and when i removed it all the paper and cork shims fell on the floor!
The edge has a ring holding the corrector on, you just remove 3 screws and pull it out. There is an etched registration mark for alignment when you put it back in.
The secondary mirror has a pin which fits into a slot in the housing so you literally can't go wrong putting it back in.
I was really amazed at the mechanical design improvement. I'm nowhere near a Don, but I reckon i could remove the corrector and re-install it in 5 minutes. The secondary removal and replacement is a 30 second job.
So things do improve, at the expense of mystery and lore!
Cheers
Paul
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