■ Be prepared. If you're embarking on an important shooting session, it's a good idea to clean your sensor now, rather than coming home with hundreds or thousands of images with dust spots caused by flecks that were sitting on your sensor before you even started. Before I left on my recent trip to Spain, I put both cameras I was taking through a rigid cleaning regimen, figuring they could remain dust-free for a measly 10 days. I even left my bulky blower bulb at home. It was a big mistake, but my intentions were good. I now have a smaller version of my favorite blower, and that goes with me everywhere.
■ Clone out existing spots in your image editor. Photoshop and other editors have a Clone tool or Healing Brush you can use to copy pixels from surrounding areas over the dust spot or dead pixel. This process can be tedious, especially if you have lots of dust spots and/or lots of images to be corrected. The advantage is that this sort of manual fix-it probably will do the least damage to the rest of your photo. Only the cloned pixels will be affected.
■ Use filtration in your image editor. A semi-smart filter like Photoshop's Dust & Scratches filter can remove dust and other artifacts by selectively blurring areas that the plug-in decides represent dust spots. This method can work well if you have many dust spots because you won't need to patch them manually. However, any automated method like this has the possibility of blurring areas of your image that you didn't intend to soften.
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