This is by far the simplest and least intrusive method. Several options are available and if you ask 10 people you'll 10 different answers. Now that you've Found your dust bunnies (I'll post some sample pictures later on), what to do about cleaning them. It is annoying but it will have zero affect on your photos If you are seeing dust in your viewfinder, it is either on the focusing screen or the viewfinder glass itself. It is also unlikely that you will see dust on the mirror. NOTE that you CANNOT see the dust on the Sensor by looking through the Viewfinder of the camera. In Fact, it would probably be better to Move the camera during the exposure to rule out other Objects (like Birds) Being dust. If using a photo, don't worry about camera shake, the dust will show because the dust is not moving (with respect to the sensor) during the test exposure. Taking the photo is actually better because the dust mapping functions can be fooled by camera motion, texture on the wall, etc. If you do not have a camera with a mapping function you can check by setting your lens to the smallest aperture and taking a picture of the sky, a blank wall, a blank white screen on your computer monitor (clean the screen first). Objects on the top of your photos are recorded on the bottom of the sensor due to the way our lenses work. Keep in mind here that the image you see in your photos is actually inverted from what the sensor sees. These will show where the dust lies on the sensor. The K20d, the K7, and I believe the Kx all have dust mapping functions. I cannot tell you how many times I've thought I had to clean my sensor only to discover that I need to clean my computer monitor screen instead. This is just another one admittedly but I'm writing this hopefully to put the mind of the new guy (or gal) at ease here at PF.įirst, Make sure you actually HAVE a dusty sensor (one spec is a dusty sensor). There are hundreds if not thousands of articles out there on the web about the dangers of cleaning your own sensor screen (the filter over the sensor) and how to do it. Damaging the sensor filter isn't as likely to happen as one might think. Now that I've scared you here is the good news. There are several methods of removing the dust and all have their risks with the possible exception of Pentax's dust removal shake the sensor system. Once that happens, be prepared to spend $400+ to have your camera fixed (anecdotal evidence only). The filter however is a sensitive surface and can be scratched. Cameras that flip the filter out of the way for night vision not withstanding. The sensor and anti-aliasing (and IR block) filter are a sealed unit so the likelihood of dust actually on the sensor is pretty slim. That is, No matter What we do, how careful we are, Dust is EVERYWHERE and WILL eventually end up on our sensors. There are several causes of these little black spots but mostly, we've discovered the universal truth about our DSLRs. Sometimes they show up only when we pixel peep other times we can see them on our little LCD screens on the rear of the camera. Many if not all of us have or will discover strange black spots on our photos.
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