I have a Sony Alpha 100K DSLR which has a different sort of sensor. I have seen quite a number of products out on the market, including the LensPen, SensorKlear and Eclipse 2 solution along with swabs by Photographic Solutions. I would like to know which is the best for cleaning the sensor, the mirror and any tips you might have on how to approach it. I have read conflicting statements on cleaning the sensor and mirror; some say it is not as difficult as it is made out to be.