New products

The Altair Electronic Filter Wheel EFW holds 7x 36mm astronomy filters and is driven by a precision stepper motor with accurate positioning system. 

The Altair M48 tilt adjuster is designed to give the perfect image field by making the CCD or DSLR camera sensor completely orthogonal to the telescope's optical axis.

HSO filter set - your key to spectacular astrophotos!

Discover the full splendour of the night sky with the HSO filter set! This high-quality filter set has been specially developed for the Hubble (HSO) palette and enables breathtaking images of nebulous objects in vivid colours.

• Perfect colour separation: Thanks to the precise narrow-band filters (H-Alpha, S-II, O-III), you can bring out the finest details.
• Maximum contrast: Reduce light pollution and enjoy razor-sharp images.
• Universally applicable: Ideal for CCD and CMOS cameras.

The new Astronomik Deep-Sky RGB filter set is specially designed for the needs of demanding astrophotographers to achieve maximum image quality with all CCD cameras. Use the Deep-Sky RGB filter set to achieve images with unparalleled sharpness, contrast range and vivid colours.

• Filter set for colour images with monochrome cameras
• Transmission >95%
• Diameter 36mm

The luminance channel is very important for a successful astrophoto! Sharpness, contrast and low noise of the luminance data are decisive for achieving the best possible quality in the final result!

The task of the L filter is to maximise transmission over the entire visible spectrum, because the combination of the widest possible aperture and high transmission makes it possible to capture the greatest possible number of photons.

• Filter 36mm with ring mount
• Photographically usable
• UV and IR are blocked

Antlia H-alpha Pro narrowband filter optimizes the FWHM (full width half maximum) to 3nm bandpass. As the bandwidth becomes narrower, the 3nm Pro narrowband filters enhance contrast of emission targets by lowering the unwanted background signal. Antlia H-alpha 3nm Pro filters are designed to deliver 88% transmission at the 656.3nm line which provides you with the maximum signal and well defined nebulae structures.

• Basic Substrate: Schott optical substrate
• Filter Thickness:   2mm+/-0.05mm for Dia31mm
• FWHM (Full width at half maximum): 3nm
• CWL (Central Wavelength): 656.3nmnm
• Peak Transmission: ?88%
• Blocking: > 5 OD(0.001% out of band blocking) @ 300-1000nm
• Surface Quality: S/D (scratch/dig)= 60/40 (Refer to MIL-O-13830)
• Transmitted Wavefront: Lambda/4 or better.
• Parallelism: less than 30 arcsec
• Single / Non-glued substrate

SI-LC2125-532—Single GREEN Beam 2"/1.25" Laser Collimator

Normally, a telescope takes parallel light rays from a distant star and converges them to a point at the eyepiece focus. Barlowed laser collimation takes advantage of the fact that a telescope will work in reverse. /... /

• Attaches to laser aperture for making the primary mirror adjustment quick, efficient and compact. 
• The Howie Glatter Barlow Laser Collimator Attachment diverges the beam just behind your barlow lens for accurate alignment. 
• Allows the user to make solo adjustments. 
• The Howie Glatter Barlow Laser Collimator Attachment fits the threaded aperture of any of Glatter holographic collimator. 
• Disc attachment with a small mounted barlow lens and flat white front surface screen.

Solid tripod, universally applicable.

• Weight: 4.50 kg
• Transport length: 80 cm
• Minimum height: 55 cm
• Maximum height: 160 cm
• Load capacity: 15.00 kg
• Vibration damping: good

Enjoy blur-free, detailed images at an impressive 16x magnification with these image-stabilized binoculars.

• Image stabilized binoculars for vibration-free observations
• More detailed images and ease of use; up to 30-hour battery life
• Magnification: 16x; Objective Ø: 42 mm; Field of view: 66.5 m / 1000 m
• Dimensions: 179 x 114 x 67 mm / weight: 668 g
• Includes: Binoculars, strap, bag, dust cap
• Optical prism compensation thanks to 2-axis gimbal
• BaK-4 glass and full multi-layer coating for bright images
• Waterproof binocular body (IPX4)
• With LE eyepieces and twist-up eyecups, suitable for people who wear glasses
• Large 42 mm lens diameter for observations until twilight

The T2i-M28i TS adapter is only 10 mm long and allows eyepieces to be quickly adapted to the T2 external thread.

• Connection at telescope end: T2 (M42x0.75) female thread - widely used or easy to fit
• Eyepiece side mount: M28x0.6 internal thread - on some eyepieces the 1.25" filter thread is also used to connect to the barrel.
• The 10mm length saves valuable optical path
• The second image shows the use of the adapter between ORIR12 and TSOAG27 (eyepiece, illumination and off-axis guide not included).

Antlia OAG and filter drawer assembly is an innovative accessory that integrates filter drawer and OAG.

• Large 12*12 mm pick-out prism for using a larger guiding sensor, therefore greater choice of guide stars.
• Mono-block (one-piece) design with the OAG body directly connected to the filter drawer - provides a very rigid platform for guiding.
• Comfortably fits APS-C sensor and full frame sensor.
• The total thickness plus both side adapters is 37.5 mm.
• Right for cameras with 17.5 mm back focus distance without additional adapters.
• A high-quality 1.25-inch helical focuser with a generous 10 mm of travel allows you will find the optimum focus for your guide star.
• The prism height can be adjusted to better illuminate the field of view of your auto guider. The smaller the imaging sensor in your camera the further down the prism can be set without interfering with the sensor.
• Dovetail-type threaded adapters are attached to the body with grub screws, so the adapters can be 360° rotated and locked to align with the telescope and camera.
• You can rotate the OAG 360° to find a guide star.
• Telescope-side connections (female thread): M48, M54, M68
• Camera side connections (male thread): T2 (M42x0.75), M48, M54, M68
• Connection adapters also fit to the respective other side
• Suitable for 2" filters

The photographic filter is designed for solar photography in calcium light.

• Telescope side connection is 1.25" and 2".
• Camera side mount is 2" with ring clamp
• Transmission at 393.3nm - FWHM is 3nm
• Maximises contrast of sunspots, granulation and faculae on the solar surface
• Ideal for use with a Herschel prism
• The filter is not intended for visual viewing

This filter was developed to suppress light pollution for colour and monochrome cameras and offers more balanced RGB colours.

• ltair TRI-RGB is great for broadband objects such as mixed emission / reflection nebulae, comets, dust clouds and galaxies, but it also allows the major emission nebulae lines through. It covers both broadband AND narrowband targets.
• TRI-RGB complements the Altair TriBand and DualBand filters by adding star colours.
• TRI-RGB and works with fast or slow focal ratio telescopes and camera lenses. 
• TRI-RGB is not only for light pollution control. It works very well under dark skies too by enhancing colour purity, airglow and reducing channel crossover in colour CMOS and DSLR cameras.
• Although primarily intended for colour cameras, TRI-RGB can be used for a cleaner luminance channel with a mono camera. 
• High transmission peaks with steep sides enhance contrast, together with almost total suppression of unwanted light, at OD4/5 (0.01%~0.001%) over the majority of unwanted visual wavelengths.

Altair DualBand 6nm ULTRA Filter Features:

• Capture two main emission nebulae bands at the same time, per filter, whilst suppressing light pollution, moonlight, and airglow.
• Acquire more data in less time, opening up your imaging window, even into the summer months when it isn't quite dark.
• If you have the 6nm Sii Oiii Ultra filter and the Ha Oiii filter combo, you can capture twice the Oiii data in each imaging session and combine them for true SHO Hubble style imaging with a colour camera!
• Extremely steep bandpass yields maximum contrast in extreme light pollution: 6nm FHWM centred on 500.7nm Oiii wavelength, 5.5nm FHWM centred on the Sii and Ha wavelengths.
• Can be used with One Shot Colour (OSC) CMOS or mono astronomical cameras for luminance data.
• Includes UVIR blocking for both modified and un-modified DSLR cameras, plus an anti-reflection coating for the ultimate in contrast.
• Best performance at focal ratios at F4.8 or slower, however can be used as fast as F3.6, with minimal contrast impact (conservative estimate - faster may be possible). Like any dichroic filter, contrast increases as focal ratio number increases. More info about light pollution filter performance and focal ratio here.
• Available in 1.25" or 2" standard astronomy filter sizes. The filters have standard Astronomy compatible filter threads, and fit inside the Altair Magnetic Filter holders (with appropriate slider), and standard astronomy filter wheels. Choose the 2" version for use with the Altair Canon / Nikon DSLR lens to astro CMOS adaptors. For Hypercam 183C and 533C or 533M, 585C and smaller sensors choose the 1.25" filter. For larger sensors choose the 2" version.