The use of chopsticks is very simple. 2-3 drops of the solution auftröpfeln, and the sensor with open mirror from left to right cleaning. You can see the effect immediately, and can also be very nice additional taxes if some games should get stuck. I have used for my very dirty sensor 2 of 12 rods that means you have what it long. Had before some anxiety about my expensive Cam, but that was totally unfounded. It's really very simple!
To clean the mirror, the solution apparently is not with me streaks hats pulled. But for that, too isses not there.
Clear the product is not very cheap, but these are not the DSLR's.
One should pay attention before buying it, however, that it is "clean sensor" on the camera is a function. If you can not fold up the mirror in the long term, but must work with mirror lock-up or with Bulb, the whole thing is extremely dangerous. If the mirror arise should fold down, that's probably for the sensor.
In my Fujifilm S5 Pro that all is not a problem. Would you love to the test images (before and after), unfortunately this does not work here.
Conclusion: Can recommend unconditionally when the camera is suitable for the stuff. Would buy again at any time, but I need that when used sparingly so probably not so soon.
And no, I am not a buyer purchased.