521.5-35 OD6 ULTRA Bandpass Filter



521.5-35 OD6 ULTRA Bandpass Filter


ULTRA Series bandpass filter with a 521.5 nm (± 1.5 nm) center wavelength (CWL), a 35 nm full-width at half-maximum (FWHM), and wide-range OD6 out-of-band blocking from 350 nm to 900 nm. This bandpass filter has exceptionally steep edges and greater than 95% average transmission from 506 nm to 537 nm. It is coated on a 2 mm thick fused silica substrate and mounted in a standard 25 mm (+0/-0.1 mm) diameter, 3.5 mm (± 0.1 mm) thick anodized aluminum ring. Alluxa ULTRA Series fluorescence filters are designed to optimize fluorescence instrument performance, resulting in bright, high contrast images of target molecules. ULTRA Series filters provide better overall performance than our standard fluorescence filters by using a combination of tight wavelength control, ultra-steep edges, deeper blocking, and the industry's highest transmission levels. All Alluxa optical filters are highly durable and hard-coated using our innovative SIRRUS™ plasma deposition process. Contact us for custom sizing.


Item Number 7750
Angle of Incidence 0 Degrees
Center Wavelength 521.5 nm ± 1.5 nm
FWHM 35 nm Nominal
Transmission Band(s) 506 to 537 nm > 95% T Average
Blocking Level OD6
Blocking Range(s)* OD6: 350 to 499 nm, 544 to 900 nm
Parallelism < 3.0 Arcseconds
Transmitted Wavefront Error < 0.25 Wave RMS @ 632.8nm
Substrate Type Fused Silica
Dimensions 25.0 mm Diameter
Filter Thickness 2.0 mm
Assembly Type Anodized Aluminum Ring
Assembly Thickness 3.5 mm
Main Fluorophore(s) 6-FAM

Availability: In stock


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