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--- kb:hardware:godox_ar400 [2025/04/21] – created robertkuyper
+++ kb:hardware:godox_ar400 [2025/04/21] (current) – robertkuyper
@@ Line 9: / Line 9: @@
 ^ Guide Number | 36 |
+The Godox AR400 is a high power flash that I primarily uses for photogrammetry.
+===== Usage =====
+This flash is modified with a polarizing filter that can be cross polarized with a filter on the camera lens to create a diffuse reflection in images. This makes it optimal for photogrammetry because it ensures that the scan has the correct color (not a moving highlight) for the software to process.
+To get optimal performance a matte black background should be used to prevent reflected light, that becomes un-polarized as it interacts with the backdrop, from hitting the scanned object. In an idealized scenario, the polarized flash would be the sole source of light in the image.,
+===== Manuals =====
+{{ :kb:manuals:godox_ar400_manual.pdf | Operator Manual}}

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