You’re absolutely right! It’s the last thing that you should be cleaning but my point was that if you do have to clean it be very careful.My preferred method of cleaning is to not look at the sensor and assume that it is clean. I know this might seem like an unhelpful comment, but I think it is important to note for those on this board who don't have experience dealing with sensors that the best policy is to not touch the sensor unless absolutely necessary.
I agree, sensor cleaning should be left to experts unless you know what to do. I've some experience in this field, I just asked the question in case there was a method accepted as most common by majority of x5s owners. Thanks to everyone.You’re absolutely right! It’s the last thing that you should be cleaning but my point was that if you do have to clean it be very careful.
Sensors are getting cleaned regularly (on as needed basis) in digital cameras without a problem. Know methods are dry and wet. For wet cleaning there are fluids available on the market such as Eclipse and various swabs. All of those methods have been used for many years with great success and if you are careful and use any of those methods wisely and gently there is no need to be worried. I always start with blower, then Arctic Butterfly and if those fail I use dry swabs and very rarely wet method. On DSLR cameras there is a chance of microscopic oil dropplets getting on sensor from the moving mechanisms inside of the mirror chamber and the only way to clean those is a wet method. My CPS have wet cleaned sensors on many of my cameras over many years. I used to do it myself on my Canon 1DsMKII and never damaged the sensor. BTW it is not the actual sensor you are cleaning but only the top protective glass over the sensor itself. There are several glass filters in front of the sensor itself and what you are cleaning is a filter not unlike any other filter such a protective UV filter many commonly use on camera lenses.You actually use those methods to clean your sensor? I’ve been told that you should never physically touch the sensor with anything other than an air bulb.