Quick Tip: Remember That Your Sensor Is Upside-Down
By Brian Auer • August 9th, 2007No, your image sensor isn’t really upside down, but the image projected onto it is. This isn’t really important for the act of taking a photo, because the camera flips the image for you. It IS important, however, when you clean your sensor. Keeping this fact in mind can save you a few swabs (and a few bucks).
After swabbing a sensor, it’s a good idea to take a test shot and check for dirt left behind. I don’t know about the rest of you, but I rarely get it all on the first try. I usually end up with a few spots on the top or the bottom of the image. When I go back for round two, I have to decide which end to pay more attention to, because the swabs don’t have a perfect reach across the entire height of the sensor. Knowing that the image is projected upside-down onto the sensor , I know that if I have spots on the top of the image I need to swab toward the bottom of the sensor.
It works, and it’ll save a few swabs.
This reminds me, I totally forgot to tell you that I (finally) got over my deathly fear of my camera’s innards and cleaned the sensor last week!
The guys at the camera store were way helpful and it was easier than I thought.
I was suffering from dry dust though, so I was using the brushes instead of the swabs.
Congratulations! I told you it wasn’t so bad. It’s a camera, not a delicate flower. You’d have to be pretty rough with things to do much damage.