Don't know if all cameras are the same but mine takes a snap of the dust and then displays it on the screen whilst you clean the sensor so it is easy to see what is there and where it is. I am sure the Loupe is good and easy but it is expensive when the camera has a system for helping with the location of debris. What you think, is it worth the layout, have a feeling you will say yes.

Hi Jack yes remember that thread, do have the Giottol rocket blower but although I use it on lens and the exterior of the camera before changing lens when ever possible I am not sure about actually blowing at the sensor because even with the camera inverted the force of the air could blow tiny grit deeper into the camera.

Snapper
My advice is go to your local camera shop with your camera and ask for a demo on the Loupe. You will be wanting one.

Bazza