TB475/550/850-49 Blue Green NIR Triple Bandpass Filter M49x0.75

Midwest Optical SystemsSKU: TB475/550/850-49

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Precio de venta$558.00 USD

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MidOpt TB475/550/850-49 Blue Green NIR Triple Bandpass Filter

TB475/550/850 Triple Bandpass Blue+Green+850nm NIR Filter, when mounted in converted consumer cameras used in aerial surveying applications, can help provide a more affordable, lightweight alternative vs. systems employing three or more cameras or sensors. Blue-Green-Near IR Extended Normalized Difference Vegetation Index (ENDVI) data gathered for vegetative health monitoring can be used to provide similar, but spectrally different information as compared to traditional NDVI data.

Soil background, differing atmospheric conditions and various types of vegetation can all influence the reflection of visible light somewhat differently. ENDVI analysis may, at times, be able to impart more accurate or reliable information regarding plant or crop health by additional leveraging of information in the blue portion of the spectrum.

The formula used is:
ENDVI = [(NIR + Green) – (2 * Blue)] / [(NIR + Green) + (2 * Blue)]

MidOpt TB475/550/850-49 Technical Specifications:

Filter Model TB475/550/850
Filter Type Blue Green NIR Triple Bandpass
StablEDGE No
Useful Range 468nm - 483nm / 543nm - 558nm / 835nm - 865nm
Tolerance +/- 10nm
Peak Transmission ≥85%
Surface Quality 40/20
Filter Size 49mm
Filter Thread M49x0.75
Outer Diameter 54mm
Clear Aperture 47mm
Overall Thickness 7mm
Exposed Thickness 5.2mm
FWHM 20nm/20nm/45nm
Average Transmission Not Specified
Brand Midwest Optical Systems

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