Dall-Kirkham Mewlon series reflectors are long focal length telescopes with high F/D focal ratio. The primary mirror is ellipsoidal while the secondary mirror is spherical. The surface accuracy of the optics is at least λ/20.
The Mewlon-180C is the most compact of the range. Easily transportable, it does not require a large mount to operate. Its F/12 focal ratio is primarily intended for planetary imaging but it remains versatile during observations. The focus, achieved by translating the primary mirror, is very smooth and very precise. The integrated 6x30 scope finder is adjustable and will serve as a handle for transport.
The telescope is delivered with a male and a female dovetails, both Vixen-type.
| Characteristic | Takahashi Mewlon-180C telescope |
| Optical design | Dall-Kirkham reflector |
| Combination | Concave elliptical primary mirror + convex spherical secondary mirror |
| Diameter | 180 mm |
| At prime focus | |
| Focal length | 2160 mm |
| Focal ratio | F/12 |
| Metal back distance | 67.2 mm |
| With Mewlon M-FLRD focal reducer | |
| Focal length | 1760 mm |
| Focal ratio | F/9.8 |
| Image circle diameter | 30 mm |
| Metal back distance | 56.2 mm |
| Characteristic | Takahashi Mewlon-180C telescope |
| Length of the optical tube assembly | 625 mm |
| Diameter of the optical tube assembly | 210 mm |
| Weight | 6.2 kg |
| Focuser | Translation of the primary mirror |
Spot-diagram of Takahashi Mewlon-180C reflector at prime focus
Spot-diagram of Takahashi Mewlon-180C reflector with M-FLRD focal reducer
| System-chart of Takahashi Mewlon-180C reflector | Télécharger |
| Instruction manual of Takahashi Mewlon-180C reflector | Télécharger |