Well, I personally use a method that is 100% free, without ANY risk (no liquid in contact with the sensor), 100% NATURAL technology and that you can do everytime you need it, and I think compatible with all : I clean sensors with bird's feathers.
Nothing better than that for me. I think you would find some informations if you googlize it, i'm lazy with my english these days. Yes, pigeons can be very usefull! (or other birds of course, with enough rigid feathers on top).
In fact, I do a little feather duster as you can see on this photo I just took.
Of course, you have to use the tool in the right direction... :-\
(http://www.lrfolio.com/outside/feather-duster.jpg)
Tilo,
When I need this, I'll try one of my lovebirds' feather. They won't like it, but.... ;D
Regards,
Adelaide
The LOVEBIRDS
soon we'll be making another run
The LOVEBIRDS
promises something for everyone...
:D
Sorry madelaide, I could not resist!