I cleaned the sensor with a brush and it is spotless now. Easy to do.
I used f16.
337 activations. I will check daily and see how many pics before it shows up again.
Brushes are great provided you're using the static aspect to remove the dust, otherwise the particles will end up in the lens cavity and back on your sensor. Arctic brushes and items like this are first "statictized"...if you will, before using on the sensor so that dust will stick on the bristles. But eventually you'll require a wet cleaning and for that I would suggest the VDust system. I've never used a different system so I can't comment on them but the VDust system works like a charm and I would recommend this just due to my own experiences.
VisibleDust. DSLR camera sensor cleaning. Remove satins of dust, oil, lubricant, water.