I am pretty sure I have dust inside of my Sony a55 SLT (Single Lens Translucent). However I'm not sure how to get rid of it or where exactly it is. I think it could be either on the translucent mirror or the sensor itself. It's in the same place each time, but mostly occurs on images with a high f number (e.g. F22 etc)

**An example image (cropped):**
![possible dust on image](https://i.stack.imgur.com/x1dIO.jpg)

Would a general sensor cleaning kit remove the dust form the translucent mirror part?

I'm unsure of what to do as it's not a conventional mirror like in SLR cameras. 

Any recommendations on a good cleaning kit? To be honest I'm slightly scared about it all as I don't want to destroy my camera!