Astronomik Filters UHC-E Sony Alpha Clip filter (53728)

250.35 $

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You'll find great satisfaction in using your Astronomik UHC filter as it enhances the visibility of stars and details in deep-sky objects far more than filters from other manufacturers.

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Atik Electronic Filter Wheel EFW2.2 5x2"

An improvement over its predecessor, the Atik EFW2.2 boasts a new mechanical indexing system for filter positioning, ensuring consistent alignment for flat field framing. This precision is crucial for maintaining uniform optical characteristics across flat field frames, crucial for accurate dust removal and handling.

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Baader Filters 2" neodymium Moon and Skyglow filter (10881)

229.18 $

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This neodymium filter serves as a selective contrast enhancer, crafted especially for reflecting telescopes. It effectively blocks specific regions in the visible spectrum, particularly targeting street lamp lighting and sky-glow caused by scattered light, alleviating the irritation caused by these sources.

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Baader Filters 2'' fringe killer (plane-optical polished) (10890)

208.78 $

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Witness the intricate details of lunar craters and planetary landscapes with enhanced clarity!

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Baader Filters C2 Swan-Band 15nm 2" (79895)

249.58 $

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Named after their discoverer, these two emission lines, known as Swan bands, prominently feature in a comet's gas tail spectrum in the visible range. By permitting only the light from these carbon bands to pass through, the filter effectively blocks stray light, akin to a nebula filter in deep-sky observation. 

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Baader Filters f/2 Highspeed SII CMOS 50.4mm (70925)

397.13 $

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The SII filter: A narrowband S-II 7nm filter, designed for nebula photography, selectively transmits light at a wavelength of 672nm with a bandpass of 3nm.

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Baader Filters H-alpha CMOS f/2 Highspeed 65x65mm (70913)

572.95 $

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The H-alpha filter transmits light at a wavelength of 656nm, making it the prime choice for narrowband H-alpha astrophotography. It excels in high-contrast imaging, showcasing intricate details of nebulae even in regions plagued by intense light pollution.

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Baader Filters H-alpha CMOS Narrowband 50x50mm (70856)

439.52 $

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The H-alpha filter operates at a wavelength of 656.3nm, making it the premier choice for narrowband H-alpha astrophotography. It excels in high-contrast imaging, unveiling intricate details of nebulae even in regions with substantial light pollution.

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Baader Filters H-alpha/OIII/SII CMOS Ultra-Narrowband 36mm (70902)

1444.17 $

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The H-alpha filter operates at a wavelength of 656nm, making it the prime option for narrowband H-alpha astrophotography. It excels in high-contrast imaging, revealing intricate details of nebulae even in regions with substantial light pollution.

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Baader Filters H-Beta CMOS Narrowband 2" (76762)

463.08 $

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The Narrowband series presents line filters with a full width at half maximum of 6.5 nanometers, ideal for optical systems ranging from f/10 to f/3.5 in aperture ratio.

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Baader Filters OIII CMOS f/2 Highspeed 36mm (70916)

271.56 $

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OIII filters exclusively permit light with a wavelength of 501 nanometers to pass through. This wavelength corresponds to the spectrum lines of doubly ionized oxygen emitted by planetary nebulae and certain emission nebulae. By selectively allowing this specific light to pass, these filters enhance contrast and reveal faint nebulae while blocking out other wavelengths.

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Baader Filters OIII CMOS f/2 Highspeed 50.4mm (70918)

395.57 $

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OIII filters exclusively permit light with a wavelength of 501 nanometers to pass through. This wavelength corresponds to the spectrum lines of doubly ionized oxygen, emitted by planetary nebulae and some emission nebulae. By selectively allowing only this specific light to pass, these filters enhance contrast, making faint nebulae visible for the first time while blocking out other wavelengths.

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Baader Filters OIII CMOS f/2 Highspeed 50x50mm (70919)

452.09 $

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OIII filters selectively pass light with a wavelength of 501 nanometers, corresponding to the spectrum lines of doubly ionized oxygen. These lines are emitted by planetary nebulae and some emission nebulae, allowing these objects to remain visible while other wavelengths are blocked by the filter. This enhances contrast, revealing faint nebulae that may not be visible otherwise.

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Baader Filters OIII CMOS f/2 Highspeed 65x65mm (70920)

566.67 $

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OIII filters selectively transmit light with a wavelength of 501 nanometers, corresponding to the spectrum lines of doubly ionized oxygen. These emission lines are characteristic of planetary nebulae and some emission nebulae, allowing these celestial objects to remain visible while other wavelengths are effectively blocked by the filter.

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Baader Filters OIII CMOS f/2 Ultra-Highspeed 31mm (70936)

422.26 $

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The OIII filter exclusively permits light with a wavelength of 501 nanometers, corresponding to the spectral lines of doubly ionized oxygen. These lines are emitted by planetary and some emission nebulae, allowing these celestial objects to remain visible while other wavelengths are filtered out. 

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Baader Filters OIII CMOS Narrowband 2" (70861)

361.03 $

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OIII Filter: The narrowband O-III 3nm filter is tailored for observing nebulae, permitting a 3nm bandwidth of light centered on a 500nm wavelength, aligning with OIII emission lines, while effectively screening out all other wavelengths.

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Baader Filters OIII CMOS Narrowband 50x50mm (70863)

447.37 $

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OIII Filter: The narrowband O-III 3nm filter is specifically crafted for observing nebulae, allowing a 3nm bandwidth of light centered on a 500nm wavelength, corresponding to OIII emission lines, while effectively excluding all other wavelengths.

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Baader Filters OIII Super-G 2" (78362)

259.01 $

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Transmission: 97%

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Baader Filters SII CMOS f/2 Highspeed 31mm (70922)

248.02 $

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SII Filter: The narrowband S-II 7nm filter selectively allows light at a 672nm wavelength with a bandpass of 3nm, specifically crafted for nebula photography.

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Baader Filters SII CMOS f/2 Highspeed 50x50mm (70926)

453.65 $

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SII Filter: The narrowband S-II 7nm filter allows light at a 672nm wavelength with a bandpass of 3nm, tailored for nebula photography.

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Baader Filters SII CMOS f/2 Highspeed 65x65mm (70927)

568.25 $

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SII Filter: The narrowband S-II 7nm filter allows light at a 672nm wavelength with a bandpass of 3nm, specifically crafted for nebula photography.

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Baader Filters SII CMOS f/2 Ultra-Highspeed 31mm (70943)

420.69 $

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SII Filter: The narrowband S-II 7nm filter allows light at a 672nm wavelength with a bandpass of 3nm, specifically engineered for nebula photography.

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Baader Filters SII CMOS Narrowband 50.4mm (70869)

428.54 $

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SII Filter: The narrowband S-II 7nm filter allows light at a 672nm wavelength with a bandpass of 3nm, specifically crafted for nebula photography.

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Baader Filters SII CMOS Narrowband 50x50mm (70870)

445.8 $

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SII Filter: The narrowband S-II 7nm filter permits light at a 672nm wavelength with a bandpass of 3nm, specifically engineered for nebula photography.

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