Filters

Shelyak Near Infrared Kit  Kit to transform your slit LISA from the Visible range (400-700 nm) to the near Infra-Red range (650-1000nm). In the Box...

Shelyak – F/9 Injection and Guiding Unit This device increases the compatibility of spectroscope eShel to telescopes F/9. The fiber inj...

Shelyak – F/6 50 µm Injection Unit  The fiber injection and guiding unit It makes it possible to inject the flux of the target into the optical fib...

Shelyak eShel Calibration unit The calibration unit :  It delivers the various sources of light to calibrate the spectrum :     Thorium-Argon la...

Shelyak Full Eshel II System  Complete optical fibre fed echelle spectroscope for astronomy. Fitted with a second generation collimator, it takes y...

Shelyak UVEX Motorized  The UVEX is a Czerny-Turner spectrograph called “crossed” and optimized for wavelengths ranging from near UV (<350nm) to...

Shelyak UVEX UVEX is a cross Czerny-Turner  spectrograph optimized for wavelengths from near UV (<400nm) to near IR (1µm). We recommend to use a...

Shelyak Alpy & Uvex Photometric Slit 23/200  Special photometric slit for the Alpy 600 spectroscope (to be used with the guiding module) and UV...

Shelyak Eyepiece holder for ALPY Guiding ! Only works with the Alpy guiding module. ! Alpy 600 requires a guiding module if you use it with your ...

Shelyak SA200 Mounting Kit  This mounting kit works for the Star Analyser 200 and other 1.25″ filter cells. Plates can be easily trimmed to size wi...

Shelyak Prism 3.8°  This 3.8° prism placed in front of your Star Analyser does improve resolution up to 130. This model is mounted on a r...

Baader 3.5 / 4nm f/3 Ultra-Highspeed Filters – CMOS-optimized (H-alpha / O-III / S-II) Baader H-alpha / O-III / S-II f / 3 Ultra-Highspeed Filter ...

Kowa TP-95FT protective filter Compatiable products: Kowa TSN-883 spotting scopeKowa TSN-884 spotting scopeKowa telephoto lensHowa High Lander bin...

Kowa TP-105FT protective filter Compatiable products: Kowa TSN-99 PROMAINR The Kowa TP-105FT filter helps to protect the pure fluorite crystal obj...

Antlia Photometric Sloan Filters The Sloan Digital Sky Survery (SDSS) photometric system is the most common filter set used by observatory today. A...

IDAS GNB Galaxy & Nebula Filters Capturing Ha & OIII emission lines as well as the galaxy’s broadband signal in NIR at same time Availabl...

Chroma 3nm SII Filter Optimized for f/2.8-f/3.6 SII filters isolate the spectral emission of singly ionized sulfur atoms, also common in nebulae. E...

Chroma 3nm OIII Filter Optimized for f/2.8-f/3.6 Chroma’s OIII filters isolate the 500.7nm primary emission line of doubly ionized oxygen. After H...

Chroma 3nm H-Alpha Filter Optimized for f/2.8-f/3.6 H-alpha filters are essential for imaging nebulae and other objects which are rich in ionized h...

Shelyak Alpy Guiding Module The spectroscope Alpy 600 can be used on table or in laboratory: in this case, just put the light source to be observed...

Shelyak Spacer for Star Analyser The Star Analyser 100 has been designed to work with the smallest commonly used sensor chips and the range of came...

Shelyak Star Analyser 200 Analyser 200 is a high efficiency 200 lines/mm transmission diffraction grating, blazed in the first order. It is mounted...

IDAS Full Spectrum (Clear) AR-coated Full Spectrum AR-coated filter Par-focal with all IDAS 48mm and 52mm, except QRO Series IDAS is a trademark o...

Tele Vue Bandmate H-Beta Filter The Tele Vue Bandmate H-Beta Filter passes the aqua colored hydrogen-beta emission lines found in the Horsehead, Ca...

Pegasus Astro Photographic Filter - S2 2'' Mounted Photographic Filter Sulfur II (SII) filters are a narrow-band-filters for CCD/CMOS photography....

Pegasus Astro Photographic Filter - OIII 2'' Mounted Filter The Oxygen III (OIII) CCD 7nm filter is designed for nebula observation allowing 7nm b...

Pegasus Astro Photographic Filter - Ha 2'' Mounted Filter This narrowband filter has a 7nm bandwidth of light centered on a wavelength of 656nm th...

Pegasus Astro LRGB Photographic Filter Parfocal LRGB Filters Broadband filters are parfocal which ensures that you will not have to refocus when yo...

Optolong SII 6.5nm Imaging Narrowband Filter Optolongimproved narrowband SII6.5nm filter (Sulful II for CCD) is designed for nebula observation all...

Optolong Night Sky H-Alpha filter Night Sky H-Alpha filter (IR Pass 650nm) with 50% transition from blocking to passing at about 640nm and 95% or a...

Optolong ND3.0 Neutral Density Filter Neutral Density (ND) filters are designed to reduce transmission evenly across a portion of a specific spectr...

Optolong Narrowband H-Beta filter Opotlong narrowband H-beta filter is designed for nebula observation allowing 12nm bandwidth of light centered on...