With your D90 being a big investment you want to keep it as clean as possible. I was cleaning mine yesterday along with my lenses and thought I’d blog a little from the book on cleaning your camera. Here’s the short of it…
CAMERA BODYUse a blower to remove dust and lint, then wipe gently with a soft, dry cloth. After using the D90 at the beach or seaside, wipe off sand with a cloth lightly dampened in distilled water and dry thoroughly.
MONITORRemove dust and lint with a blower. When removing finger prints and other stains, wipe the surface lightly with a soft cloth or chamois leather. Do not apply pressure, as this could result in damage or malfunction.
Note: Do not use alcohol, thinner, or other volatile chemicals.
Cleaning is performed by vibrating the image sensor. If dust can not be fully removed using the options in Clean Image Sensor menu, clean the images sensor manually or consult a Nikon authorized company to clean for you.