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Astronomik Deep-Sky Blue Filter Astronomik has added a new range of RGB filters to its line of World class products. The new Deep-Sky RGB filters a...

Astronomik Deep-Sky G filter During the design of the Deep-Sky RGB filters we took a close look at the sensitivity curves of today’s popular CCD ca...

Astronomik Deep-Sky R filter During the design of the Deep-Sky RGB filters we took a close look at the sensitivity curves of today’s popular CCD ca...

Astronomik Green Type 2c Filter Our filter set especially designed for astrophotography with CCD cameras. These filters provide a natural color rep...

Astronomik H-Beta Filter The Astronomik H-beta is a filter for visual observation, in particular with instruments of larger aperture. It lets the l...

Askar 0.7x Full Frame Reducer for FRA600 The Askar 3 inch F3.9 full frame reducer features 4 elements optical design specifically for the FRA600, o...

APM-Riccardi Universal Flattener Model 2 Our high-quality, universal flattener for apochromats was calculated by the famous optics designer Massimo...

APM-Riccardi 0.75x M82 Reducer Massimo Riccardi, well-known optical designer from Italy, has calculated a high-quality 3-lens 0.75x reducer / flatt...

APM-Riccardi 0.75x M63 Reducer Massimo Riccardi, well-known optical designer from Italy, has calculated a high-quality 3-lens 0.75x reducer / flatt...

APM Adjustment Flange for M82 Reducer With our tilt adapter you can correct a possible tilting of your camera sensor in the beam path. Tilting can ...

APM Adjustment Flange for M63 Reducer With our tilt adapter you can correct a possible tilting of your camera sensor in the beam path. Tilting can ...

APM 2" Prism Diagonal w/ Fast-Lock and Ultra Broadband Coating In contrast to zenith mirrors, the optical path is closed to the rear on this prism....

Finderscope 50mm Reverted image illuminated The Antares IFR50WT features right angle reverted image viewing with the helical focus IRK27 illum...

Antares Finderscope 50mm Reverted Image - 60° AFOV  The Antares FR50WT features reverted image right angle viewing with a helical focus wire-x...

Antares W70 19mm 66° W70 series eyepieces offer a wider field of view and more comfortable eye relief than Plossls. The Antares W70 19mm 66° has (8...

Antares Variable Camera Adapter 1.25" EP1-V is a combination camera adapter for 1.25" that allows for both direct and variable extention eyepiece p...

Antares Speers-Waler Series4 25mm 74° The 2" Antares Speers-Waler Series4 25mm 74° eyepiece offers a wide 74 degree AFOV with superb correction. Fo...

Antares Speers-Waler Series3 17mm 80° Speers-Waler Series3 eyepieces offer edge correction superior to series2 that can be appreciated by experienc...

Antares Speers-Waler Series3 13mm 80° Speers-Waler Series3 eyepieces offer edge correction superior to series2 that can be appreciated by experienc...

Antares Speers-Waler Series2 9.4mm 80° Speers-Waler Series2 eyepieces offer a wider field of view W70 Series. The Series2 1.25" 9.4mm ha...

Antares Speers-Waler Series2 17mm 80° Speers-Waler Series2 eyepieces offer a wider field of view W70 Series. The Antares Speers-Waler Series2 17mm ...

Antares Speers-Waler Series3 6mm 80° Speers-Waler Series3 eyepieces offer a wider field of view W70 Series. The Antares Speers-Waler Series3 6mm 80...

Antares Red Dot Finderscope A red dot finder reflects a spot image from an LED against the sky. While there is no magnification, it's a very useful...

Antares Red Dot Finder With Bracket A red dot finder reflects a spot image from an LED against the sky. While there is no magnification, it's a ver...

Antares Plössl 25mm 52° The 1.25" Antares Plössl 25mm 52° with 52 degrees apparent field and symmetrical design has low aberrations and great color...

Antares Plössl 20mm 52° This 1.25" 20mm Plossl eyepiece has 52 degrees apparent field, MgF2 coatings, rubber eye shield and is threaded for filters...

Antares Plössl 17mm 52° The 1.25" Antares Plössl 17mm 52° with 52 degrees apparent field and symmetrical design has low aberrations and great color...

Antares Plössl 12.5mm 52° The 1.25" Antares Plössl 12.5mm 52° with 52 degrees apparent field and symmetrical design has low aberrations and great c...

Antares Plössl 10mm 52° The 1.25" Antares Plössl 10mm 52° with 52 degrees apparent field and symmetrical design has low aberrations and great color...

Antares M42 Variable Camera Extender Adapter (T2-EXT-V) T2-EXT-V is a variable M42 T-thread extender with 60-100mm range   In the Box Antares M42 V...

Antares M42 Variable Camera Adapter Astrophotography using intermediary lens systems can require a precision back-focus to the image plane so as to...

Antares M42 Pentax K T-Ring Adapts your Pentax K camera to M42 T Thread.   In the Box Antares M42 Pentax K T-Ring Warranty & Manuals Antares...

Antares M42 Nikon T-Ring Adapts your Nikon camera to M42 T Thread.   In the Box Antares M42 Nikon T-Ring Warranty & Manuals Antares 1-Year W...

Antares M42 Minolta AF T-Ring Adapts your Minolta autofocus camera to M42 T Thread.   In the Box Antares M42 Minolta AF T-Ring Warranty & Ma...