Foreoptics control the field-of-view and maximize data collection to better meet specific application requirements. A wide selection of foreoptics lenses are available for use with the FieldSpec® 3 and FieldSpec® HandHeld 2 spectroradiometer systems.
For non-destructive contact measurements and characterization of mineral and ore samples.
Designed for analysis of raw materials requiring reflectance and absorbance measurements of minerals and some inorganic material applications requiring a higher intensity light.
Use with ASD’s family of Contact Probes for non-destructive, one-handed functionality, and improved analysis of live vegetation and other thin heat sensitive targets.
Reference panels are available in calibrated and non-calibrated diffuse white and gray, in varying sizes and reflectance levels, including encapsulated gray scale (NIST/NRC traceable) wavelength and USP standards for USP 1119.
FieldSpec 4 Standard-Res Spectroradiometer
The New Standard in Field Spectroscopy
Ideally suited to meet the needs of today’s researcher, the FieldSpec®4 Standard-Res spectroradiometer offers ASD’s state-of-the-art remote sensing technology with dramatically improved speed, performance and portability over previous models. This full-range Vis/NIR (350-2500 nm) portable spectrometer features enhanced capabilities in the SWIR 1 and 2 regions, as well as double the signal-to-noise performance, allowing you to cover more ground without losing any data quality.
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Improvements in the SWIR 1 and 2 regions allow researchers to cover twice the area in half the time as the FieldSpec 3.
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New spectrometer configuration provides double the signal-to-noise ratio performanceas previous ASD portable spectrometers.
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New ruggedized fiber optic cable and a compact, impact-resistant case make the FieldSpec 4 Standard-Res field ready and highly portable.
The FieldSpec 4 Standard-Res, with a 10 nm resolution, comes in a mobile package with a small, lightweight, impact-resistant case and a convenient backpack travel cover. A new ruggedized cable protects the fiber optics, nearly eliminating fiber breakage. An expanded wireless range adds flexibility by helping users capture spectra farther from the instrument controller.
The FieldSpec 4 is ideal for a wide range of applications, including hyperspectral image interpretation, crops and soils research, and radiometric calibration.
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Spectral Range |
350-2500 nm |
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Spectral Resolution |
3 nm @ 700 nm
10 nm @ 1400/2100 nm |
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Sampling Interval |
1.4 nm @ 350-1050 nm
2 nm @ 1000-2500 nm |
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Scanning Time |
100 milliseconds |
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Stray light specification |
VNIR 0.02%, SWIR 1 & 2 0.01% |
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Wavelength reproducibility |
0.1 nm |
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Wavelength accuracy |
0.5 nm |
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Maximum radiance |
VNIR 2X Solar, SWIR 10X Solar |
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Channels |
2151 |
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Detectors |
VNIR detector (350-1000 nm): 512 element silicon array
SWIR 1 detector (1000-1800 nm): Graded Index InGaAs Photodiode, TE Cooled
SWIR 2 detector (1800-2500 nm): Graded Index InGaAs Photodiode, TE Cooled |
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Input |
1.5 m fiber optic (25° field of view). Optional narrower field of view fiber optics available. |
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Noise Equivalent Radiance (NEdL) |
VNIR 1.0 X10-9 W/cm2/nm/sr @ 700 nm
SWIR 1 1.2 X10-9 W/cm2/nm/sr @ 1400 nm
SWIR 2 1.9 X10-9 W/cm2/nm/sr @ 2100 nm |
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Weight |
5.44 kg (12 lbs) |
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Calibrations |
Wavelength, absolute reflectance, radiance*, irradiance*. All calibrations are NIST traceable. (*radiometric calibrations are optional)
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Computer |
Windows® 7 64-bit laptop (instrument controller)
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Warranty |
One year full warranty including expert customer support
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FieldSpec 4 Standard-Res Spectroradiometer