Takahashi Mewlon 210 Dall-Kirkham Telescope
| Article number: | TLK21000 |
| Availability: | More on the Way to us |
| Delivery time: | Special Order |
The Takahashi Mewlon Series of Dall-Kirkham Telescopes by Takahashi combines refractor-like performance in a larger folded optic reflector design. The Mewlon series comes in three objective diameters: 210 mm, 250 mm and 300 mm. This revolutionary design has set the standard in folded optic systems.
The precision optical surfaces of the Mewlon series is at least λ/20. This results a highly concentrated airy disc, resulting in pin point star images and high contrast fields. The primary mirror is installed in a specially designed mirror cell that is designed to reduce astigmatism.
SPECIFICATIONS for the M-210 (Tube assembly only)
| Effective aperture | 210mm |
| Focal length (prime focus) | 2415mm/1961mm w/reducer |
| Focal ratio (prime focus) | F/11.5-F/9.3 w/reducer |
| Resolution | 0.55" |
| Limiting magnitude | 13.4 |
| Light grasp | 900x |
| Image circle | ø18mm/ø39mm w/reducer |
| Photographic field | 1.2° w/reducer |
| Total length of main tube | 700mm |
| Diameter of main tube | ø244mm |
| Primary mirror | 220mm F/2.9 |
| Secondary mirror | 65mm /X4 |
| Secondary Obstruction | 31% |
| Finder scope | 7x50 6.3° |
| Gross wt. of main tube assembly | 8kg (17.6lbs) |
What's in the Box
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- Takahashi Mewlon M-210 Reflector OTA
- 2" Sleeve to 1.25" Adapter (TKP00113)
- Coupling S for Visual (TKP00103)
- 1.25" Compression Ring Ocular Adapter (TKP00101)
Dall-Kirkham Telescope combines refractor-like performance in a larger folded optic reflector design. The Takahashi Mewlon 210 at prime focus provides a focal length of 2415mm, focal ratio of f/11.5 and image circle of 18mm. Primary mirror diameter measures 220mm (f/2.9) with a secondary mirror amplification of 65mm (4X) and secondary obstruction of 0.32 (31%). The Takahashi Mewlon 210 measures 700 mm long, 244 mm in diameter and weighs 17.6 lbs. (8kg). It offers a limiting visual magnitude of 13.4 and a light grasp of 900x - providing an outstanding resolution factor of .55 arc seconds. The Takahashi Mewlon 210 with optional reducer can achieve a focal length of 1961mm, focal ratio of f/9.3, image circle of 39mm and a 1.2° image field.
Specifications for Mewlon 210 Dall-Kirkham Telescope Optical Design Dahl-Kirkham Cassegrain Aperture 210mm (8.27") Limiting Visual Magnitude 13.4 Focal Ratio 11.5 Focal Length 2415mm Optical Tube Dimensions 27.55" X 9.6" Secondary Obstruction 31% Weight - OTA 17.6 lb