Nachfolgend sind detaillierte Informationen der zur Verfügung stehenden Filter aufgeführt.

Für die Photometrie sind Johnson-Cousins Filter vorhanden (seit Dezember 2018). Es steht auch ein Klar-Filter zur Verfügung.

• Spectral profiles designed after UV, B, V, Rc, Ic Johnson/Cousins
• Improved B filter extending blocking >1100 nm and eliminating small light leaks that affected measurements of reddest stars in our initial filters
• 100% coated – no colored glass
• Peak transmission guaranteed > 90%
• <0.01%T(ave) typical out-of-band 300 – 1100 nm; additionally =<0.1% Tabs for B***
• Striae-free, single fused silica substrates
• 1/4-wave propagated wavefront prior to coating
• <0.5 arcminute substrate parallelism
• 3.000 +/-0.025 mm substrate thickness
• Parfocal with all Astrodon filters
• Edge-blackened
• 1.25″ mounted
• Substrate: 3.0mm +/-0.025mm fused silica
• Filter Size: 25.4mm +/-0.1mm diameter
• Clear Aperture: Central 23.4mm diameter minimum
• TWF: </= 1/4 lambda per any 25mm square area before coating
• Parallelism: </=0.5 arcminute before coating
• Coating: To edge of part
• AOI: 0 degree
• Scratches: </= 0.06mm width; no limit on length
• Particles/Bubbles: </= 0.4mm dia.
• Pinholes/Voids: </= 0.2mm dia.
• Edge Finish: As fabricated
• Chips: </=0.5mm
• Edge Treatment: Edges blackened with Enthone M-0-N black epoxy ink.
• Thickness </= 0.1mm. It may extend 0.5mm onto top and bottom surfaces.

• T = 50%: 377.0 nm +/- 5.7nm; T = 50%: 473.0 nm +/- 3.8 nm
• 365 nm – 525 nm: match target curve by design – will not evaluate
• 410 nm – 425 nm: Tmin >= 90%
• 300 nm – 350 nm: Tave ⇐0.01%; 550 nm – 1100 nm: Tave ⇐0.01%; 560 nm – 1000 nm: Tabs ⇐0.1%
• Back reflections with theoretical values < 0.4% average by design.Listenpunkt

• T = 50%: 490.0 nm +/- 7.3nm; T = 50%: 589.2 nm +/- 4.7 nm
• 478 nm – 640 nm: match target curve by design, will not evaluate
• 518 nm – 532 nm: Tmin >= 95%
• 300 nm – 460 nm: Tave ⇐0.01%; 670 nm – 1050 nm: Tave ⇐0.01%
• Coating has been redesigned to minimize back reflections with theoretical values < 0.3% average.

• T = 50%: 567.3 nm +/- 8.5nm; T = 50%: 717.1 nm +/- 5.7 nm
• 550 nm – 850 nm: match target curve by design – will not evaluate
• 594 nm – 615 nm: Tmin >= 95%; 300 nm – 525 nm: Tave ⇐0.01%
• 900 nm – 1050 nm: Tave ⇐0.01%; 860 nm – 900 nm: Tave ⇐ 1.0%

• T = 50%: 721.8 nm +/- 10.8nm; T = 50%: 889.8 nm +/- 7.1 nm
• 705 nm – 900 nm: match target curve by design – will not evaluate
• 758 nm – 850 nm: Tmin >= 95%
• 300 nm – 680 nm: Tave ⇐0.01%; 930 nm – 1050 nm: Tave ⇐0.01%