How to clean a DSLR sensor
If your DSLR sensor is dirty, any picture you take may appear spotty or grainy. Cleaning your sensor periodically can keep your pictures clear and help avoid excess dust from building up on the sensor. DSLR sensors can be cleaned in 1 of 2 ways: dry or wet cleaning. With the right tools and plenty of persistence, you can clean your DSLR sensor all on your own...bold