A newly installed high-end projector in an executive boardroom is projecting a clear image along the edges but displays a noticeable blur in the center areas during its first use in a presentation. Prior inspection indicates the lens and external components are clean and unobstructed. After ensuring connection integrity, which of the following should be executed next to effectively mitigate this specific issue?
Perform a firmware software update for the projector to the latest version.
Recalibrate lens properties directly via projector settings if adjustable.
Clean the lens internally presuming a possible overlooked contamination.
Decrease the output resolution to reduce strain on projector's lens clarity.
Keystone correction is specifically related to adjusting the image output when a projector is not positioned perpendicular to the screen, which can lead to distortion primarily at the sides but could potentially affect focus distribution if severe. Despite feeling intuitive, cleaning the lens or adjusting resolution may not address a central blur when the edges are clear; and updating the software deals with processing but it's uncommon for this to specifically affect focal sharpness. Thus, recalibrating the lens properties such as focus would be a logical step before assuming other hardware or software failures.
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