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Baader Dark Blue Color Filter Baader Dark Blue Color Filter is used for visual and photographic planetary observations. It aids in better detection...

Baader D-ERF Energy Rejection Filter (75 - 180mm) D-ERF (Dielectric Energy Reflection Filter) in different sizes Pre-filter to reduce heat during ...

Baader Color Filter Set The Baader Color Filter Set contains 6 colors for contrast enhancement of lunar and planetary observations. See individual ...

Baader Clearglass Filter (C) for ffcusing/Dust Protection Baader Premium grade impermeable RGB-C Clearglass Filters. The Baader clear glass filte...

Baader 3.3" for Celestron C11 / C14 and Meade 10-14" 3.3" thread for C11 and C14 For connecting the 2" eyepiece clamp no. 2408140 (T-2 component ...

Baader 3.3'' to 2" ClickLock Clamp - For 9.25'' HD to 14 SCT  Fits 9¼" HD, 11" standard / HD and 14" standards / HD models from Celestron.  The wai...

Baader 2" BBHS Mirror Diagonal with 2" ClickLock The Baader 2" BBHS Mirror Diagonal with 2" ClickLock brings silver into the 21st Century.  Silver ...

Baader 2" 90° Deluxe Amici Prism with BBHS Coating 2" ClickLock-Clamp and 2" nosepiece Correct image orientation Suited for astronomical observati...

Astronomik IR Blocker Filter Astronomik developed an infrared-blocking filter for digital photography. The Astronomik filter should be used as a st...

Astronomik L-RGB color filter set The transmission properties of the L-RGB Typ 2c filters are optimized for CCD astrophotography. The set allows to...

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 Universal Flattener Model 1 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....

APM 2" Herschel Wedge Herschel wedges (Solar prisms) are made for the solar observation with refractors. Appr.  95% of the incoming solar light wil...

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 Filter Neutral Density 13% Neutral density filters can reduce brightness across the visual spectrum without losing resolution, enhan...

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 Twist-Lock Adapter 2" To 1.75" Extension ET1.5TL extends any 2" accessory by 1.75" with twist-lock retainer. Works with any barrel design: ...

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 9.5mm 80° Speers-Waler Series3 eyepieces offer edge correction superior to series2 that can be appreciated by experien...

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...