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Baader 3.5 / 4nm f/3 Ultra-Highspeed-Filterset 50x50mm – CMOS-optimized (H-alpha / O-III / S-II)

Baader 3.5 / 4nm f/3 Ultra-Highspeed-Filterset 50x50mm – CMOS-optimized (H-alpha / O-III / S-II)

Baader 3.5 / 4nm f/3 Ultra-Highspeed-Filterset 50x50mm – CMOS-optimized (H-alpha / O-III / S-II)

$330.69

Original: $944.83

-65%

Baader 3.5 / 4nm f/3 Ultra-Highspeed-Filterset 50x50mm – CMOS-optimized (H-alpha / O-III / S-II)—

$944.83

$330.69

The Story

Highlights

50 x 50 mm x 3 mm Baader CMOS H-alpha / O-III / S-II f/3 Ultra-High-speed Filter Set – Premium Grade
3.5 / 4 nm FWHM (to harmonize the exposure time from H-alpha with O-III / S-II), recommended for fast optical systems from f/3.4 to f/2.3
Specially designed for the special filter requirements when used with fast f/3 optics
For highest contrast even at strongest light pollution, minimizes star size, emphasizes finest nebula detail – indispensable under Bortle 9/8/7/(6) skies
Reflex-Blocker™ hard coated and Plane-optically polished – with sealed coating edges (Life-Coat™)
Blackened edges all around, with filter-lead-side-indicator in the form of a telescope-sided black outer rim
Optimized for modern CMOS cameras, but likewise excellent for CCD camera technologies

Description

This new generation of Baader CMOS-filters features:

Increased contrast

Ever more narrow band-passes

Reflex-Blocker^™ coatings, for largest ever freedom from halos, even under most adverse conditions concerning aux-optics

FWHM on each filter category carefully designed to allow for 1:1:1 exposures,

matched for typical CMOS quantum efficiency and s/n ratio

Identical filter thickness to existing standards, with utmost care for remaining Par focal

Blackened edges all around, with filter-lead-side-indicator in the form of a black front side outer rim, to additionally eliminate any reflection due to light falling onto the edge of a filter

Each filter coated individually, with sealed coating edge (NOT cut out of a larger plate with coatings left exposed, read more)

-Coat™: evermore hard coatings to enable a non-aging coating for life – even in a most adverse environment

Specifications

Manufacturer	Baader Planetarium
SKU (#)	2961645
EAN Code	4047825051868
Net weight (kg)	0.22
Suitable for f/ratio	f/3.4 to f/2.3
Transmission Range	H-alpha / O-III / S-II
Filter Thickness (without cell)	3 mm
HBW (Half bandwidth)	3.5 nm (H-alpha) / 4 nm (O-III / S-II)
CWL (Central Wavelength)	656,3 nm / 500,7 nm / 671,7 nm
AR-Coating	Reflex-Blocker™ hard coated, Plane-optically polished
Special Features	CMOS-optimiert mit Life-Coat™
Filter size	50 x 50 mm
Filter Usage	CMOS, CCD, H-alpha, O-III, S-II
Filter mounted	Unmounted
Type of Filter	f/3 Ultra-High-speed
Single or Set?	Filter-Set
Filter shape	square

Baader 3.5 / 4nm f/3 Ultra-Highspeed-Filterset 50x50mm – CMOS-optimized (H-alpha / O-III / S-II) - Image 2

Details & Craftsmanship

Every detail has been carefully considered to bring you the perfect product.

Baader 3.5 / 4nm f/3 Ultra-Highspeed-Filterset 50x50mm – CMOS-optimized (H-alpha / O-III / S-II) - Image 3

Details & Craftsmanship

Every detail has been carefully considered to bring you the perfect product.

Baader 3.5 / 4nm f/3 Ultra-Highspeed-Filterset 50x50mm – CMOS-optimized (H-alpha / O-III / S-II) - Image 4

Details & Craftsmanship

Every detail has been carefully considered to bring you the perfect product.

Baader 3.5 / 4nm f/3 Ultra-Highspeed-Filterset 50x50mm – CMOS-optimized (H-alpha / O-III / S-II) - Image 5

Details & Craftsmanship

Every detail has been carefully considered to bring you the perfect product.

Baader 3.5 / 4nm f/3 Ultra-Highspeed-Filterset 50x50mm – CMOS-optimized (H-alpha / O-III / S-II) - Image 6

Details & Craftsmanship

Every detail has been carefully considered to bring you the perfect product.

Baader 3.5 / 4nm f/3 Ultra-Highspeed-Filterset 50x50mm – CMOS-optimized (H-alpha / O-III / S-II) - Image 7

Details & Craftsmanship

Every detail has been carefully considered to bring you the perfect product.

Baader 3.5 / 4nm f/3 Ultra-Highspeed-Filterset 50x50mm – CMOS-optimized (H-alpha / O-III / S-II) - Image 8

Details & Craftsmanship

Every detail has been carefully considered to bring you the perfect product.

Baader 3.5 / 4nm f/3 Ultra-Highspeed-Filterset 50x50mm – CMOS-optimized (H-alpha / O-III / S-II) - Image 9

Details & Craftsmanship

Every detail has been carefully considered to bring you the perfect product.

Baader 3.5 / 4nm f/3 Ultra-Highspeed-Filterset 50x50mm – CMOS-optimized (H-alpha / O-III / S-II) - Image 10

Details & Craftsmanship

Every detail has been carefully considered to bring you the perfect product.

Baader 3.5 / 4nm f/3 Ultra-Highspeed-Filterset 50x50mm – CMOS-optimized (H-alpha / O-III / S-II) - Image 11

Details & Craftsmanship

Every detail has been carefully considered to bring you the perfect product.

Baader 3.5 / 4nm f/3 Ultra-Highspeed-Filterset 50x50mm – CMOS-optimized (H-alpha / O-III / S-II) - Image 12

Details & Craftsmanship

Every detail has been carefully considered to bring you the perfect product.

Baader 3.5 / 4nm f/3 Ultra-Highspeed-Filterset 50x50mm – CMOS-optimized (H-alpha / O-III / S-II) - Image 13

Details & Craftsmanship

Every detail has been carefully considered to bring you the perfect product.

Baader 3.5 / 4nm f/3 Ultra-Highspeed-Filterset 50x50mm – CMOS-optimized (H-alpha / O-III / S-II) - Image 14

Details & Craftsmanship

Every detail has been carefully considered to bring you the perfect product.

Baader 3.5 / 4nm f/3 Ultra-Highspeed-Filterset 50x50mm – CMOS-optimized (H-alpha / O-III / S-II) - Image 15

Details & Craftsmanship

Every detail has been carefully considered to bring you the perfect product.

Baader 3.5 / 4nm f/3 Ultra-Highspeed-Filterset 50x50mm – CMOS-optimized (H-alpha / O-III / S-II) - Image 16

Details & Craftsmanship

Every detail has been carefully considered to bring you the perfect product.

Baader 3.5 / 4nm f/3 Ultra-Highspeed-Filterset 50x50mm – CMOS-optimized (H-alpha / O-III / S-II) - Image 17

Details & Craftsmanship

Every detail has been carefully considered to bring you the perfect product.

Baader 3.5 / 4nm f/3 Ultra-Highspeed-Filterset 50x50mm – CMOS-optimized (H-alpha / O-III / S-II) - Image 18

Details & Craftsmanship

Every detail has been carefully considered to bring you the perfect product.

Baader 3.5 / 4nm f/3 Ultra-Highspeed-Filterset 50x50mm – CMOS-optimized (H-alpha / O-III / S-II) - Image 19

Details & Craftsmanship

Every detail has been carefully considered to bring you the perfect product.

Baader 3.5 / 4nm f/3 Ultra-Highspeed-Filterset 50x50mm – CMOS-optimized (H-alpha / O-III / S-II) - Image 20

Details & Craftsmanship

Every detail has been carefully considered to bring you the perfect product.

Baader 3.5 / 4nm f/3 Ultra-Highspeed-Filterset 50x50mm – CMOS-optimized (H-alpha / O-III / S-II) - Image 21

Details & Craftsmanship

Every detail has been carefully considered to bring you the perfect product.

Baader 3.5 / 4nm f/3 Ultra-Highspeed-Filterset 50x50mm – CMOS-optimized (H-alpha / O-III / S-II) - Image 22

Details & Craftsmanship

Every detail has been carefully considered to bring you the perfect product.

Baader 3.5 / 4nm f/3 Ultra-Highspeed-Filterset 50x50mm – CMOS-optimized (H-alpha / O-III / S-II) - Image 23

Details & Craftsmanship

Every detail has been carefully considered to bring you the perfect product.

Baader 3.5 / 4nm f/3 Ultra-Highspeed-Filterset 50x50mm – CMOS-optimized (H-alpha / O-III / S-II) - Image 24

Details & Craftsmanship

Every detail has been carefully considered to bring you the perfect product.

Baader 3.5 / 4nm f/3 Ultra-Highspeed-Filterset 50x50mm – CMOS-optimized (H-alpha / O-III / S-II) - Image 25

Details & Craftsmanship

Every detail has been carefully considered to bring you the perfect product.

Baader 3.5 / 4nm f/3 Ultra-Highspeed-Filterset 50x50mm – CMOS-optimized (H-alpha / O-III / S-II) - Image 26

Details & Craftsmanship

Every detail has been carefully considered to bring you the perfect product.

Baader 3.5 / 4nm f/3 Ultra-Highspeed-Filterset 50x50mm – CMOS-optimized (H-alpha / O-III / S-II) - Image 27

Details & Craftsmanship

Every detail has been carefully considered to bring you the perfect product.

Baader 3.5 / 4nm f/3 Ultra-Highspeed-Filterset 50x50mm – CMOS-optimized (H-alpha / O-III / S-II) - Image 28

Details & Craftsmanship

Every detail has been carefully considered to bring you the perfect product.

Baader 3.5 / 4nm f/3 Ultra-Highspeed-Filterset 50x50mm – CMOS-optimized (H-alpha / O-III / S-II) - Image 29

Details & Craftsmanship

Every detail has been carefully considered to bring you the perfect product.

Baader 3.5 / 4nm f/3 Ultra-Highspeed-Filterset 50x50mm – CMOS-optimized (H-alpha / O-III / S-II) - Image 30

Details & Craftsmanship

Every detail has been carefully considered to bring you the perfect product.

Baader 3.5 / 4nm f/3 Ultra-Highspeed-Filterset 50x50mm – CMOS-optimized (H-alpha / O-III / S-II) - Image 31

Details & Craftsmanship

Every detail has been carefully considered to bring you the perfect product.

Baader 3.5 / 4nm f/3 Ultra-Highspeed-Filterset 50x50mm – CMOS-optimized (H-alpha / O-III / S-II) - Image 32

Details & Craftsmanship

Every detail has been carefully considered to bring you the perfect product.

Baader 3.5 / 4nm f/3 Ultra-Highspeed-Filterset 50x50mm – CMOS-optimized (H-alpha / O-III / S-II) - Image 33

Details & Craftsmanship

Every detail has been carefully considered to bring you the perfect product.

Baader 3.5 / 4nm f/3 Ultra-Highspeed-Filterset 50x50mm – CMOS-optimized (H-alpha / O-III / S-II) - Image 34

Details & Craftsmanship

Every detail has been carefully considered to bring you the perfect product.

Description

Highlights

50 x 50 mm x 3 mm Baader CMOS H-alpha / O-III / S-II f/3 Ultra-High-speed Filter Set – Premium Grade
3.5 / 4 nm FWHM (to harmonize the exposure time from H-alpha with O-III / S-II), recommended for fast optical systems from f/3.4 to f/2.3
Specially designed for the special filter requirements when used with fast f/3 optics
For highest contrast even at strongest light pollution, minimizes star size, emphasizes finest nebula detail – indispensable under Bortle 9/8/7/(6) skies
Reflex-Blocker™ hard coated and Plane-optically polished – with sealed coating edges (Life-Coat™)
Blackened edges all around, with filter-lead-side-indicator in the form of a telescope-sided black outer rim
Optimized for modern CMOS cameras, but likewise excellent for CCD camera technologies

Description

This new generation of Baader CMOS-filters features:

Increased contrast

Ever more narrow band-passes

Reflex-Blocker^™ coatings, for largest ever freedom from halos, even under most adverse conditions concerning aux-optics

FWHM on each filter category carefully designed to allow for 1:1:1 exposures,

matched for typical CMOS quantum efficiency and s/n ratio

Identical filter thickness to existing standards, with utmost care for remaining Par focal

Blackened edges all around, with filter-lead-side-indicator in the form of a black front side outer rim, to additionally eliminate any reflection due to light falling onto the edge of a filter

Each filter coated individually, with sealed coating edge (NOT cut out of a larger plate with coatings left exposed, read more)

-Coat™: evermore hard coatings to enable a non-aging coating for life – even in a most adverse environment

Specifications

Manufacturer	Baader Planetarium
SKU (#)	2961645
EAN Code	4047825051868
Net weight (kg)	0.22
Suitable for f/ratio	f/3.4 to f/2.3
Transmission Range	H-alpha / O-III / S-II
Filter Thickness (without cell)	3 mm
HBW (Half bandwidth)	3.5 nm (H-alpha) / 4 nm (O-III / S-II)
CWL (Central Wavelength)	656,3 nm / 500,7 nm / 671,7 nm
AR-Coating	Reflex-Blocker™ hard coated, Plane-optically polished
Special Features	CMOS-optimiert mit Life-Coat™
Filter size	50 x 50 mm
Filter Usage	CMOS, CCD, H-alpha, O-III, S-II
Filter mounted	Unmounted
Type of Filter	f/3 Ultra-High-speed
Single or Set?	Filter-Set
Filter shape	square

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Baader 3.5 / 4nm f/3 Ultra-Highspeed-Filterset 50x50mm – CMOS-optimized (H-alpha / O-III / S-II) | Telescopes