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Recently, manufacturers have been promoting CCTV cameras with resolution specifications
higher than 540 HTVL, implying that video security customers will benefit from enhanced
resolution. It turns out, however, that even if a CCTV camera can pass a test that validates a resolution specification over 540 HTVL, the end-user is not going to get more than 540 lines out of a typical installation because of system limitations common to all real-world CCTV applications.
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