Pictures are just to demonstrate our morning coffee progress and test an explanation that I found yesterday for the my lens
problem. In this helpful page Martin Pot from Australia describes what he's going to do about his old lens with the same problem. While I am not brave enough to go inside an L-series lens with a screwdriver (which is what he ultimatly did), an advice that I extracted from his post was that the lens would still work if the aperture was open. So I tried and it does work, as you can see in those picture. 4 is not the best aperture for this lens, at least for my copy of it (veeery soft and a lot of color leaking), but it is a great relief to see that something still can be done with this lens before I either break it completely with my own fixing effort of decide to go for an expensive option and fix it at official Canon place.
problem. In this helpful page Martin Pot from Australia describes what he's going to do about his old lens with the same problem. While I am not brave enough to go inside an L-series lens with a screwdriver (which is what he ultimatly did), an advice that I extracted from his post was that the lens would still work if the aperture was open. So I tried and it does work, as you can see in those picture. 4 is not the best aperture for this lens, at least for my copy of it (veeery soft and a lot of color leaking), but it is a great relief to see that something still can be done with this lens before I either break it completely with my own fixing effort of decide to go for an expensive option and fix it at official Canon place.
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