Optical Accessories

The ADC corrects the dispersive effects of Earth´s atmosphere. You will get sharper images of planets and moon.

• The Atmospheric Dispersion Corrector is a revolution in observing and imaging objects.
• Through the use of 2 high quality prisms, it corrects the false colour introduced by the earth´s atmosphere.
• When used for planetary imaging, it changes the clarity of the image dramatically, particularly in the luminence channel when LRGB imaging.
• Adaption is simple through T2 thread on both sides
• You can use the ADC for visual and photography
• You see the result very clear through the eyepiece
• Latest Version

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.

The Askar 0,8x Reducer - corrector for the 160 mm f/7 triplet apo turns the 140 mm apo into a fast astrograph.

• designed for the Askar 160APO
• brings the focal ratio down to f/5.6
• suitable for full frame cameras

• Focal length: 9mm
• Socket: 1.25” (31.75 mm)
• Apparent field of view: 82° ultra-wide angle
• Eye spacing: 8 mm
• Soft rubber eyecup for comfortable viewing
• Thread for 1.25" filters
• Optics: 7-element design with broadband anti-reflective coating
• Blackened lens edges
• Construction: CNC-machined housing with an attractive finish
• Weight: 165g

SV188P 90 Degree Dielectric Mirror Diagonal 99% Reflectivity for Refractor Telescope

• Dielectric coatings; super flat mirror with dielectric coatings to reduce reflected light loss; provide an over 99% reflective surface; good for astronomical viewing;
• The 1.25-inch nosepiece fits 1.25-inch telescopes and accepts standard 1.25-inch filters, eyepieces, Barlow lenses, and similar accessories; The 2-inch nosepiece is compatible with 2-inch telescopes and accommodates standard 2-inch filters and accessories. You can choose either 1.25inch or 2inch diagonal based on your requirements;
• 90 degree viewing angle; diagonal reflects the telescope’s light path 90 degree to provide a more comfortable viewing angle; best for observing objects overhead;
• Correct upside down and left right reversed image; the view image is upright; but left and right reversed if use the 90 degrees to your telescope;
• Brass compression ring; Built in brass ring and thumbscrew accessories avoid eyepiece to rotate during adjustments; effortless fixes more firmly and will not scratch your eyepieces barrels.