askar

203mm Aperture Triplet Air-Spaced APO Objective 1421mm Focal Length at f/7 Includes one ED (Extra-Low Dispersion) Glass Element Retractable Tube D...

2-inch Barrel Diameter High-Reflectivity Dielectric Mirror Coating Accepts both 2" and 1.25" Eyepieces Compatible with SCT and Refractor/Reflector...

Réducteur de focale 3" conçu spécifiquement pour le télescope Askar FRA600 Réduit le rapport focal à f/3,9, optimisé pour les capteurs pl...

Ouverture de 32 mm, lunette de guidage du rapport focal f/4 Conçu pour un autoguidage précis dans les configurations d'astrophotographie...

Enables SHO "Hubble Palette" imaging with a one-shot-color (OSC) camera Includes two 3nm dual-bandpass filters: E1 (Hα+OIII) and E2 (SII+OIII) Iso...

Dual-bandpass for Hydrogen-alpha (656.6nm) and Oxygen-III (500.7nm) Ultra-narrow 3.7nm (Ha) and 4.0nm (OIII) FWHM bandwidths 85% peak transmittanc...

Dual-bandpass design captures OIII (500.7nm) and SII (672nm) simultaneously Narrow 3.7nm (OIII) and 4.0nm (SII) FWHM for high-contrast imaging Pea...

Enables automated focusing for the Askar 50P astrograph Compatible with almost all brands of electronic focusers Eliminates manual focus adjustmen...

50mm Aperture Quadruplet APO Optics Ultra-Fast f/3.8 Focal Ratio 190mm Focal Length Natively Flat Field for APS-C Sensors Standard 55mm Back Focus...

Aperture: 52mm Focal Length: 208mm Focal Ratio: f/4 Focuser: Helical with 25mm travel Weight: 631g Description FAQ Specifications In the Box Do...

52mm Aperture 249.6mm Focal Length (f/4.8) Air-Spaced Doublet Objective Lightweight 0.74kg Design Includes M42x0.75 and 1.25" Adapters Descript...

0.75x Focal Reduction Reduces Focal Length to 311mm Creates a Fast f/5.1 Focal Ratio 44mm Full-Frame Image Circle Standard 55mm Back Focus Triplet...

60mm Aperture Quadruplet APO Optics 408mm Focal Length f/6.8 Native Focal Ratio 44mm Full-Frame Image Circle Integrated Field Flattener 2.86kg Gro...

65mm Aperture Quintuplet APO Optical Design 416mm Focal Length at f/6.4 Built-in Field Flattener with 44mm Image Circle 2.8kg Total Weight Includi...

Ensemble double filtre : 6 nm Ha/OIII (D1) et 6 nm SII/OIII (D2) Optimisé pour l'astrophotographie à contraste élevé et à bande étroite ...

Filtre à double bande étroite de 6 nm de largeur de bande pour les longueurs d'onde Ha et OIII Taille de 2 pouces pour une compatibilité avec d...

Filtre à double bande étroite de 6 nm pour les longueurs d'onde SII et OIII Taille de 2 pouces pour la compatibilité avec diverses config...

Ouverture de 71 mm, réfracteur apochromatique quadruplet à rapport focal f/6,9 Conception à champ plat optimisée pour l'astrophotographi...

560mm Focal Length f/7 Focal Ratio Triplet Objective with ED Glass APS-C Corrected Image Circle 55mm Back Focus 0.42kg Weight Description FAQ S...

Ouverture de 80 mm, réfracteur apochromatique quadruplet à rapport focal f/7 Conçu pour l'astrophotographie et l'observation visuelle de ...

Reduces focal ratio to a fast f/5 0.75x reduction factor for wider fields of view Triplet optical design provides field-flattening correction Stan...

91mm Aperture Quadruplet APO Optics 609mm Focal Length at f/6.7 44mm Full-Frame Corrected Image Circle Integrated Field Flattener Design 3.92kg Ne...

Adds electronic autofocus capability to the Askar ACL200 lens Designed for seamless integration with ZWO EAF and other electronic focusers Include...

Enables Electronic Autofocus on the Askar FMA180 Pro Designed for Seamless Integration with ZWO EAF Broadly Compatible with Most Electronic Focuse...