- Telescopes
- Overview:
Telescopes - Achromatic Refractor
- Apochromatic Refractor
- Overview:
Apochromatic Refractor - ED Refractor - less color aberration than an achromatic
- SD APO - color free 2-element APO objective
- EDT APO - 3 element ED objective
- High End APO with 3-element APO objective - no color aberation
- Flatfield APO with flat field for Astrophotography
- All Apos and EDs from all manufacturers - large overview
- TS APO and ED from Japan with high quality optics
- Overview:
- Newtonian Telescopes
- Dobsonian Telescopes
- RC Ritchey Chretien Telescopes
- Casssegrain Telescopes
- Reflektor Telescopce with Lens Correcture
- Maksutov Cassegrain Telescopes
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- Smart Telescopes
- Solar Telescopes H-Alpha
- Overview:
- Mounts Tripods Rings Rails Power Supply ...
- Overview:
Mounts Tripods Rings Rails Power Supply ... - Mounts Equatorial with GoTo
- Mounts Equatorial without GoTo
- Mounts Azimutal with GoTo
- Mounts Azimutal without GoTo
- Mounts GoTo - Harmonic Drive
- Travel mounts for astro imaging
- Tripods Piers Polar Wedges
- Mount Control & Electronics
- Dovetail Clamps, Plates and Mount Adapters
- Tube Rings
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- Overview:
- Telescope Accessories
- Overview:
Telescope Accessories - Eyepieces
- Barlows & Reducer Lenses
- Diagonal Mirrors and Prisms
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- Other telescope accessories
- Replacement Parts
- Overview:
- Filters
- Overview:
Filters - Color Filters and Color Filtersets
- Nebular Filters for Visual Observing
- Neutral-Density and Polfilter
- Photo Narrowband Nebular Filters
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- Photo Planetary Filters
- Photo R-G-B and IR Cut Filters
- Photo - Filtersets
- Photometric Filters
- Clip Filter for DSLR Cameras
- Filter Wheels and Filterslider
- Solar Filters for white light
- Solarfilter for H-Alpha and Calcium
- Overview:
- Adaptors
- Overview:
Adaptors - Adapter 1,25" and 24,5mm
- Adapter 2"
- Adapter T2 - M42x0.75
- Adapter M48x0,75
- Adapter M54
- Adapter SC
- Adapter M63
- Adapter M68
- Adapter to other Threads
- Adapter Extensions
- Adapter camera bayonet
- Adapter Objective Filterthread
- Adapter Quick Changing , Rotation
- Adapter Eyepiece Projection
- Adapters Tilting
- Overview:
- Astrophotography and Photography
- Overview:
Astrophotography and Photography - Cooled Cameras
- Cameras without Cooling
- Deep-Sky Cameras uncooled
- Set-Offers Camera, Filter, Wheels
- Acessories for Cameras
- Travel mounts for astro imaging
- Imaging Correctors for Telescopes
- Autoguiding Cameras & Sets
- Everything for Guiding
- Focusing aids - Bahtinov mascs
- Flat Field foils and boxes
- Lenses for Cameras
- Piggyback Camera Holder
- Camera Bags, Photocases & more
- Digital Camera and Smartphone Adapter
- Other photo accessories
- Overview:
- Binoculars, Spotting Scopes, Microscopes, Range Finders
- Overview:
Binoculars, Spotting Scopes, Microscopes, Range Finders - Spotting Scopes and Acessories
- Roof Prism Binoculars
- Binoculars with Porro prisms
- Binoculars from 100mm Aperture
- Binoculars with 1,25 inch eyepieces
- TSMX APO Binoculars
- Binoculars for Astronomy
- Binoculars Hiking Bird watching
- Monoculars - Opera Binoculars
- Accessories for Binoculars
- Range Finders
- Microscopy
- Bags for Phototripods & Binoculars
- Overview:
- Phototripods and Binomounts
- Books, Software
- Overview:
Books, Software - Books for Astronomy Beginners
- Star Charts and Planispheres
- Books about our Solar System
- Observing Tips for Amateurs
- Popular Astronomy Literature
- Teaching material
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- Telescopes, Observatories, Construction
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- Overview:
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manufacturers
Askar f/3.9 Full-Frame Reducer for FRA400 and FRA500 Flatfield Astrograph Reviews
2/2 Reviews
Wrote by Severin S. on 10.10.2023
Super
Wrote by Guest on 12.06.2022
Funktioniert zusammen mit meinen FRA500 perfekt, bin begeistert.
Abstand ist bei mir etwas kürzer als angegeben.
