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Shutter speed is the amount of time the shutter allows light onto the CCD. The shutter speed is measured in seconds (or fractions of a second for most common pictures). The slower the shutter speed, the more motion is recorded by the camera. A tripod might be needed to use slower shutter speeds without blurring the picture. 

The best camera smartphone for 2018 include Google Pixel XL 2, Apple iPhone X, Samsung Galaxy S9+, LG V30 Plus, HTC U11, and the Honor View 10 among others.

Some digital cameras can adjust for lens focal problems. Sometimes the focus was sharp enough but other times, especially at f/2.8 (limited depth of field) the shots were soft. This was a film camera and no local calibration was possible. 

UV filters are practically useless (image-wise) on DSLRs since digital sensors are not nearly as sensitive to UV light as film. So don't spend $150 on a "premium UV filter" if you're shooting digital. Just grab a $20 one off amazon and use it as a lens protector. 

Install Surveillance Cameras at the Front Door. Around 34% of burglars enter through the front door, so you definitely need a security camera watching. Place your camera at second-floor level to avoid a burglar from knocking out your camera.

Generally photographers put UV filters on DSLRs for the larger purpose of protecting their lenses. Lenses can cost hundreds or thousands of dollars, whereas UV filters are generally less than $40, and sometimes less than $10.