Clean your lens often. Even the smallest of dust particles on the glass of your camera's lens adds noticeable spots on your photos (especially in solid color areas like a deep blue sky). And fingerprints or smudges can blur portions of images. DSLR owners are more likely to wipe-down their glass on a regular basis (typically every time they use their camera), while those using point-and-shoot models (including iPhone cameras) tend to omit the cleaning process. Everyone, however, should routinely clean their lenses. Regardless of the camera you use, the cost of a soft, static-free cloth and a small bottle of lens cleaning solution is a small price to pay for spotless, sharp images.