I just upgraded from a D60 to a D3100 and have a question about cleaning the image sensor. In particular, with the D60 when you set the option to clean the image sensor on each on/off it displayed that choice in the menu. Moreover, when you turned the D60 on or off an animated display came on the screen showing the sensor being cleaned. With the D3100 when I set the option to clean the sensor at startup and shut down and then press OK all I see next to the clean image sensor selection on the Setup Menu screen is --. Moreover, when I turn the camera on or off, there is no animated display showing the sensor being cleaned. Does the D3100 have that animated screen? If so, does it sound as if my camera is defective? Thanks in advance for your response.
Thanks for your response. My D3100 does clean the sensor when you choose that option and it displays a message saying "Cleaning Image Sensor" and then "Done". It doesn't display that message when you turn the camera on or off after setting the Clean At option to On/Off (startup - shutdown). I would really appreciate it if you could set your camera so that the Clean At On/Off is selected and then turn the camera off and on and let me know if you get the message "Cleaning Image Sensor" and "Done". If so then my D3100 must be defective, since I don't get that message and thus have no idea of whether or not the sensor is being cleaned on shutdown and startup. Thanks again.
I tried what you had asked, and I do not see any messages whatsoever. I don't think that you have a problems with your camera, but if you would like me to try something different, I would be happy to do so, just let me know.
One last thing. When you were in the Setup Menu for the "clean image sensor" option was there two dashes "--" showing after you drilled down and selected the "Startup & shutdown OK"? After I do that, when I go back to the Setup Menu screen and look at the clean image sensor option it still shows "--". My old Nikon D60 used to show the particular option selected, i.e., clean image sensor at on/off. Since my D3100 doesn't do anything like that I don't have any idea in looking at the main setup menu what setting i have chosen unless I drill down further. Perhaps that is the way that the Nikon engineers wanted to do it. Thanks again for your help. I really appreciate you taking the time to help me out.
I took your concerns one step further and put my D700 though the same steps, and the results are the same, no indication that the sensor is being cleaned when turned on or off and the two dashes "--" are all that appear next to the menu item.