| F-Number The F-Number in laser engraving refers to the numerical aperture of the laser lens, which determines the light-gathering ability and depth of field of the lens. A lower F-Number indicates a larger aperture and greater light-gathering capacity, resulting in faster engraving speeds and improved depth of focus. Engravers select the appropriate F-Number based on factors such as material type, engraving depth, and desired engraving resolution, balancing speed and precision to achieve optimal engraving results. |
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