Filter and lenses
187
Manta Technical Manual V8.0.1
Optical filters
All color Manta cameras are equipped with an Hoya C-5000 IR cut filter. This filter is
employed to prevent infrared light from passing to the sensor. In the absence of an
IR cut filter, images are dominated by red and incapable of being properly color
balanced.
All monochrome Manta cameras are equipped with Protection glass B 270 (ASG).
NIR Manta cameras do not employ an IR cut filter or protection glass.
The following figure shows the filter transmission response for the default Hoya
C-5000 IR cut filter and B 270 ASG protection glass and includes the optional
Jenofilt 217 IR cut filter, RG715 IR pass filter, and RG830 IR pass filter.
Figure 108: Optical filter spectral transmission
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