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The SP644 is useful to achieve natural color rendition with superior response in the blue channel
surveying equipment
giving the appearance of a bright white diffuse background in a monochrome image
The GOYO GMN35020MCN-1 is part of the GMN series
Dual Bandpass Blue + 850nm Near-Infrared (IR) Filter - MidOpt DB475/850 Size:30.5mm The SP644 is useful toThe MidOpt DB475 850 Dual Bandpass Blue + 850nm Near Infrared (IR) Filter is designed for Normalized Difference Vegetation Index (NDVI) imaging applications. When using a single camera, this filter allows reflected near IR (NIR) light (850nm) to be captured in the camera sensors red channel and reflected blue light (475nm) to be captured in the sensors blue channel (the green channel is not used). Even when using an inexpensive consumer camera (that