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MidOpt TB550/660/850-77 Green Red NIR Triple Bandpass Filter
MidOpt triple bandpass filters are primarily designed for aerial agriculture mapping and surveying purposes. Green-Red-Near IR data is used for applications where Chlorophyll Vegetation Index (CVI) and other vegetative index monitoring is preferred. TB550/660/850 filters, when mounted in converted consumer cameras, can help in achieving a more affordable, lightweight alternative to systems using three or more cameras or sensors.Some of the formulas that are employed in these cases include:
Chlorophyll Vegetation Index
CVI = (NIR * Red) / (Green ^ 2)
Normalized Green
NG = Green / (NIR + Red + Green)
Normalized Near Infrared
NNIR = NIR / (NIR + Red + Green)
Normalized Red
NR = Red / (NIR + Red + Green)
Triangular Vegetation Index
TVI =0.5 * (120 * (NIR – Green) – 200 * (Red – Green))
MidOpt TB550/660/850-77 Technical Specifications:
Filter Model | TB550/660/850 |
Filter Type | Green Red NIR Triple Bandpass |
StablEDGE | No |
Useful Range | 543nm - 558nm / 653nm - 668nm / 835nm - 865nm |
Tolerance | +/- 10nm |
Peak Transmission | ≥85% |
Surface Quality | 40/20 |
Filter Size | 77mm |
Filter Thread | M77x0.75 |
Outer Diameter | 85mm |
Clear Aperture | 76.8mm |
Overall Thickness | 6.5mm |
Exposed Thickness | 4.5mm |
FWHM | 20nm/20nm/45nm |
Average Transmission | Not Specified |
Brand | Midwest Optical Systems |
Gastos estimados de envío
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