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Tag Archives: focal length

Home / Posts Tagged: focal length

Determining the focal work in progress: a useful method in the phases of grinding

Sep 8, 2014deabuTechniquesfocal length

In the design phase of our astronomical mirror, it is essential to determine the focal length at which you want to reach, since the same focal length depends on the extent of the arrow, ie the depth of the center of the mirror with respect to its edges that we will achieve especially in the roughing phase. The formula for calculating the extent of the arrow is

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