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Baader Ultra-Narrowband CMOS Filters

Baader Ultra-Narrowband filters are CMOS-optimized narrowband filters with a 3.5nm H-alpha and 4nm O-III and S-II passband. The tight bandwidth gives strong contrast on emission nebulae and helps under light-polluted skies or a bright Moon.

They are designed for telescopes at conventional focal ratios, while the Highspeed versions serve very fast optics. Choose the individual H-alpha, O-III or S-II filter, or the complete 3.5nm/4nm set for SHO imaging with a mono camera.

Filters

CA$1,126.00 - CA$2,451.00
CA$1,126.00 - CA$2,451.00
CA$1,126.00 - CA$2,451.00
CA$1,126.00

Baader 3.5nm / 4nm Narrowband Filter Set - CMOS-Optimized H-alpha/O-III/S-II

Options available
2 variants in stock

3-Filter Set: H-alpha (3.5nm), O-III (4nm), S-II (3.5nm) Ultra-Narrow Bandpasses for Maximum Image Contrast CMOS-Optimized to Eliminate Halos and ...

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CA$1,126.00 - CA$2,451.00
CA$1,126.00 - CA$2,451.00
CA$1,126.00 - CA$2,451.00
CA$1,126.00
CA$382.00 - CA$822.00
CA$382.00 - CA$822.00
CA$382.00 - CA$822.00
CA$382.00

Baader 4nm Ultra-Narrowband OIII Filter - CMOS-Optimized

Options available
2 variants in stock

4nm Ultra-Narrowband OIII Bandpass Optimized for Modern CMOS Sensors Reflex-Blocker™ Hard Coatings to Prevent Halos Life-Coat™ Technology for Extr...

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CA$382.00 - CA$822.00
CA$382.00 - CA$822.00
CA$382.00 - CA$822.00
CA$382.00
Baader Planetarium Baader S-II 1.25" Ultra-Narrowband-Filter (4nm) – CMOS-optimized
CA$389.00 - CA$827.00
CA$389.00 - CA$827.00
CA$389.00 - CA$827.00
CA$389.00

Baader Planetarium S-II Ultra-Narrowband-Filter (4nm) – CMOS-optimized

Options available
1 variants in stock

4nm Full-Width Half-Maximum (FWHM) Bandpass Optimized for Modern CMOS Sensors Available in 1.25" (M28.5 x 0.6) & 2" Mounted, 31mm, 36mm & ...

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CA$389.00 - CA$827.00
CA$389.00 - CA$827.00
CA$389.00 - CA$827.00
CA$389.00
Baader Planetarium Baader H-alpha 1.25" Ultra-Narrowband-Filter (3.5nm) – CMOS-optimized
CA$415.00 - CA$932.00
CA$415.00 - CA$932.00
CA$415.00 - CA$932.00
CA$415.00

Baader Planetarium H-alpha Ultra-Narrowband-Filter (3.5nm) – CMOS-optimized

Options available
1 variants in stock

3.5nm Ultra-Narrow Bandpass Available in 1.25" & 2" mounted, 31mm, 36mm & 50.4mm round unmounted, and 50x50mm & 65x65mm square sizes C...

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CA$415.00 - CA$932.00
CA$415.00 - CA$932.00
CA$415.00 - CA$932.00
CA$415.00