Filters

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

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...

SVBONY SV405CC Cooled Color Camera for Deep Space Astrophotography IMX294 Sv405cc with UV/IR Cut filter can achieve pure color shooting effect of ...

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 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...

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...

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...

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...

Lunt Polarizing Filter for White Light Wedges When doing visual work with Lunt White Light Wedges, we recommend adding a Lunt Polarizing Filter for...

Optolong Improved OIII 6.5nm Narrowband Filter Optolong improved extra Narrowband OIII-CCD 6.5nm filter is designed for nebula observation allowing...

Optolong NB Filters SHO 6.5nm Narrowband Filter Kit Optolong SHO6.5nm filter kit includes SII6.5nm, H-Alpha7nm, and OIII6.5nm narrow-band filters, ...

Optolong H-Alpha 7nm Narrowband Filter Optolong improved version of H-Alpha 7nm filter is the popular narrowband filter allowing 7nm bandwidth of l...

Optolong Clear Sky Filter Screw on Lens 1. Optolong Clear Sky Filter Introduction A screw on filter with the easiest installation way like UV fi...

IDAS HEUIB-II H-alpha Enhanced UV/IR Cut Filter The IDAS HEUIB-II (H-α Enhanced UV IR Blocking) filter is designed for enhanced spectrum DSLR's and...

Daystar UV/IR Cut 2" The Daystar UV/IR Cut 2″ reduces the heat load on your filter assembly by absorbing or reflecting UV and/or I light and transm...

Daystar Sodium D-Line Quark Filter This new, All-In-One design marries high quality components of a telecentric barlow, adapters, snouts and Daysta...

Daystar Quark Prominence H-alpha Filter The Daystar Quark Prominence H-alpha Filter marries high quality components of a telecentric barlow, adapte...

Daystar Calcium H-Line Quark Filter This All-In-One design marries high quality components of adapters, snouts and Daystar calcium filter into one ...

Daystar Quark for Questar H-alpha Filter (Chromosphere or Prominence) Chromosphere: The Daystar Quark Chromosphere for Questar H-alpha Filter is fo...