Correctors & Reducers

APM Comacorrecting 1 1/4" ED Barlow 2.7 xDesigned by Gerd Düring / GermanyOur totally new photo-visual apochromatic Barlow with real ED glass, calculated for the correction of Off-Axis Coma at Newtonian telescopes. This Barlow allows you to observe...

APM Comacorrecting 1 1/4" ED Double Barlow 6.25 xDesigned by Gerd Düring / GermanyOur worldwide unique photo-visual apochromatic 2.7x Barlow with real ED glass, calculated for the correction of Off-Axis Coma at Newtonian telescopes, can now be combined...

APM 2 inch coma-correcting telecentric 1.5x Barlowby the well known physicist and optic designer Philipp KellerSome times past APM Telescopes introduced the coma-correcting 2.7 times Barlow designed by Gerd Düring, which enjoys great popularity.New...

Our new reducer, calculated and designed from RiccardiMassimo Riccardi, famous optical designer from Italy, designed for APM-Telescopes a new 3 element 0.75 x Apo-Reducer/Flattener Corrector for all TMB-APM-LZOS Apochromatic Telescopes. Tests show that...

The Askar new FRA400 F3.9 full-frame reducer reduces the telescope’s effective focal ratio by a factor of 0.7x, thus an original f/5.6 becomes an f/3.9 system, your exposure time will significantly shorten, providing a shorter, more optically...

The Askar 3 inch F3.9 full frame reducer features 4 elements optical design specifically for the FRA600, offers a 0...

2" Glasspathcorrector® Factor 1.7 for Newtons - at full aperture with integrated Coma-Corrector. Includes T-2 change ring (#2456320) for adaptation on Maxbright BinocularSuitable to insert into the Baader Maxbright II and Mark V Großfeld Binocular...

2" Glasspathcorrector® Factor 1.8 for Refractors and Schmidt Cassegrains - at full aperture.Suitable to insert into the Baader Maxbright and Mark V Großfeld Binocular viewer (insert diameter: ∅ 2" - 50,.8mm, incl. M48 filter thread)You will also...

A common limitation that plagues owners of most popular Schmidt-Cassegrain telescopes is the narrow field size and high magnifications produced by their slow optical system (typically, f/10). Until now, owners of SCTs have lacked a truly versatile and...

Apochromatic, multi-coated fluorite lens system10-times higher line resolution than the world best projection eyepiecesThe FFC fits on every T-2 thread and in every 2" focuserBaader FFC – 2" / T-2 Fluorite Flatfield ConverterThe CaF2...

Glasspathcorrector Factor 1.25. Optical path length: -30 mmGlasspathcorrector Factor 1,7. Optical path length: -65 mmGlasspathcorrector Factor 2,6. Optical path length: -120 mmInsert diameter: ∅ 38 mmA Baader Glaspathcorrector is not a Barlow lens! The...

3-lens field corrector for BAADER APO 95/560 CaF2 Travel Companion76.11mm backfocus, 52mm corrected field of viewTelescope side M68a thread, camera side M68i thread

45 ° an erecting prism AmiciIncluding 2x Glaswegkorrektor ™ (Glass Path Corrector) and 1¼ "barrelSuitable for all SC telescopes and refractorsOnly suitable for Baader Maxbright Binocular

DescripitonTelescope-sided with M43 x 1 male thread, e.g. for Vixen instrumentsEyepiece-sided with T-2 (M42 x 0,75) male threadThis connection ring allows to connect e.g. a binoviewer or a ClickLock® eyepiece directly at the focuser with M43 x 1 female...

The RCC I (Rowe Coma Corrector) is a Coma Corrector from Dave Rowe with Triplet Lense design for f/4 NewtonsThe RCC works from f/3.5 to f/6 - it is perfect on f/4Coma Corrector with backfocus 91,5mmreproduction scale is 1:1 - in contrast to many other...

Features This combination focal reducer and field corrector lens accessory works with all Celestron 5", 6", 8", 9 1/4", 11" and 14" Schmidt-Cassegrain telescopes This clever accessory makes it possible to have a dual focal ratio instrument, without...

Features The EdgeHD .7x Focal Reducer Lens makes your EdgeHD 1100 one full F-Stop faster than f/10, reducing your exposure time by half to capture the same brightness of object 5-element lens design Maintains similar flat-field performance as native...