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. 2021 Sep 17;17(4):565–576. doi: 10.1007/s12024-021-00420-x

Table 2.

Lens filters used for multispectral photogrammetry. Detailed information about the IR-neutralization f

ilters is not available. According to the manufacturer, IR-neutralization filters restore the original camera transmission range and color representation

Manufacturer Filter name 50% transmission
[nm]
Approx. transmission
range [nm]
Optic Makario yellow 460 450–1100
Optic Makario IR neutralization N/A

Original camera

transmission range

Optic Makario IR longpass 850 810–1100