The rubber parts seemed pretty new-ish after that. I did use a very small amount of unscented hand lotion, worked it into the material and then wiped it very thoroughly with a coarse nap microfiber cloth. I havn't tried alcohol, although that makes sense. I've had this on a couple of Canon lenses and on a Gitzo tripod. My understanding is that the white st uff is plasticizers that have leached out of the material. My 40D camera has turned whitish, like if some kind of white powder was rubbed on it, it looks terrible!
Is there any rubber recondition material you can safely recommend? How do you clean your gear to prevent this? I would really like to hear your thoughts, your advice and your experiences. I want to make sure, I can use my gear for years to come. The headphones have touch pads to both sides and the rubber on the side that is used more often is gooey already. I have bought some headphones 6 months ago. Have you experienced similar decomposing, sticky or gooey rubber elements on your gear? I actually think it is the actual rubber used. I have a lot of vintage lenses, and none of these show any signs, and I am quite surprised that my Canon gear is showing these signs. I don't want to face a situation, where all my items will eventually decompose, making expensive lenses unusable, knowing there is nothing I can do. All my other gear is kept in a dry cabinet, hoping this would help. I consider contacting Canon to find out what can be done. There is all sorts of info on what you could or should do, but nothing that helps to prevent this from happening. I tried to do my google research, but couldn't find definitive answers, other than that rubber will decompose over time, and that sweaty hands might be a contributing factor. The rubber has never been treated with chemicals, or soap, but cleaned with a damp cloth. As I have kept these items for sentimental reasons, I didn't keep them in my dry cabinet, but kept them on a dedicated shelf in a room with low humidity. These items have hardly been used though, they have not been exposed to salt water, not exposed to heat and not exposed to humidty. I am referring to a Canon 1D, a 10D, a 24mm-85mm, and a 50mm 1.4 lens, all of them over 10 years old. The plastic is so sticky that it sticks to your fingers and leaves black marks.
The lenses show the same signs on the focus ring. The bodies' mode dials are very soft and sticky. I have two bodies and two lenses that have gooey rubber. Recently I realised that I have some older lenses and bodies that show signs of decomposing rubber.
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