LP390-25.4 UV Absorbing Protective Window Longpass Filter 25.4 mm / C-Mount

Midwest Optical SystemsSKU: LP390-25.4

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Sale price$90.00 USD

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Description

MidOpt LP390-25.4 UV Absorbing Protective Window Longpass Filter

LP390 filters are absorptive filters used to block ultraviolet (UV) light while allowing high (>90%) visible and near-IR light transmission. Most silicon camera sensors have some sensitivity in the UV spectrum. In some color cameras, this light can typically be recorded as blue light, resulting in an exaggerated bluish tint. These filters are well suited for color imaging applications as they absorb UV light and are precision ground and polished to exceptional flatness and parallelism. They are also frequently used as simple protective windows, shielding expensive camera lenses from inevitable contamination and scratching over time or, in more challenging environments, even breakage.

MidOpt LP390-25.4 Technical Specifications:

Product Line / Series LP - Lens Protective
Filter Model LP390
Filter Type UV Absorbing Protective Window Longpass
StablEDGE Yes
Useful Range 410nm - 1100nm
Tolerance +/- 10nm
Peak Transmission ≥90%
Surface Quality 40/20
Filter Size 25.4mm
Filter Thread 25.4 mm / C-Mount
Outer Diameter 27.5mm
Clear Aperture 21mm
Overall Thickness 7mm
Exposed Thickness 5.2mm
FWHM Not Specified
Cut-on Wavelength 50% T 380nm
Average Transmission Not Specified
Brand Midwest Optical Systems

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