Digital Photography Tutorial - Keeping A Digital Camera Lens Dust Free
by Dan Feildman
If you're using a digital SLR and begin to notice dark specks in your photos, don't worry: this is not caused by strange ghosts appearing in your photos. It's simply dust on your sensor. When you change the lenses on an SLR dust can easily get inside the camera and settle on the sensor, which in turns creates dark little spots in the pictures you take.
Your camera may already have a built-in sensor-dusting function, but most cameras will still require a careful manual cleaning.
1. Buy a self-cleaning SLR.
Dust specks on the sensor cause dark spots like the ones marring the sky in the photo on the left. You can see the spots close-up on the right.
Olympus makes two SLR cameras, the E1 and Evolt E-300, which have a Supersonic Wave Filter built in. Each time you turn on the camera or activate the filter, the Supersonic Wave Filter vibrates the sensor in order to shake dust off. Adhesive strips that run along the sides of the sensor collect the dust. From what I have seen, this system works pretty well. It's a pity other manufacturers don't offer something similar.
2. Clean your camera with care. If you don't own an Olympus SLR sooner or later you'll need to clean your sensor. You can send it to the manufacturer for a professional cleaning if you're apprehensive about doing it yourself. Unfortunately, that's not a very practical or cost effective way to handle the problem every time you seen a new spot. Although you should always be careful, the best solution to the problem is to clean the dust yourself.
Most sensors have a protective glass covering and you want to be careful not to scratch or damage it as there's a good chance the manufacturer's warranty will not cover repairs. Be careful about what you put inside your camera. Also, never blow compressed air inside the camera. Compressed air uses propellants that can leave a residue and create a film over your sensor.
Use products that are made specifically for sensor cleaning. A number of companies make them, including Photographic Solutions and Visible Dust. Kinetronics Speck Grabber is useful for getting at particular bits of debris, since it has a little light built in. And Kodak sells its own sensor-cleaning kit and provides detailed instructions on how to clean its cameras' sensors.
When you're chosen your product and are ready to clean the sensor, put the camera into sensor-cleaning mode so that the sensor is exposed (check the manual about how to do this with your particular model) and remove the lens. Use a bulb blower to blow dust off the sensor; you will want to make sure you hold the camera up so that the dust falls out instead of settling inside again. Follow the instructions of the cleaning product you've chosen. Usually this involves carefully swabbing the surface of the protective glass over the sensor.
To check that you have gotten rid of all the dust take a picture of a blank wall or piece of paper. Look at it at full size on a computer monitor and see if you can detect any remaining specks.
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New Unique Article!
Title: Digital Photography Tutorial - Keeping A Digital Camera Lens Dust Free
Author: Dan Feildman
Email: andrewedgington1@gmail.com
Keywords: art,photography,entertainment,hobbies,digital cameras,education
Word Count: 529
Category: Hobbies
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