Takahashi
TOA-130NS/130NFB Refractor Telescope
- Regular price
-
$ 7,200.00 - Sale price
- $ 5,400.00
- Unit price
- per
This item is a Special Order from the Manufacturer
In Stock
Special Order
Description
The TOA series is a member of Takahashi’s line of triplet refractors. In the TOA design, three lens elements are used, with the front and rear constructed from ED glass. The resulting system achieves a high level of apochromatic performance for both visual observation and imaging. Takahashi engineers have a undertaken a complete redesign of the triplet system, completely eliminating spherical aberration while minimizing axial chromatic aberration in the visible light spectrum.
In typical apochromatic designs, the elimination of chromatic aberration is usually at the expense of increasing spherical aberration at various wavelengths. However, with the TOA series, the focal shift across the entire visible spectrum from 436nm up to 656nm is less than +/- 0.01mm. This is less than 1/100 the aberration of a typical apochromatic design.
TOA-130NS
The TOA-130NS is a 130mm apochromatic f/7.7 refractor with a focal length of 1000mm. It features a retractable lens hood and 2.7inch rack and pinion focuser. A complete line of flatteners, reducers and extenders are available, including the 67-series flattener, which provides a 90mm imaging circle.
TOA-130NFB
The TOA-130NFB is a 130mm apochromatic f/7.7 refractor with a focal length of 1000 mm. It features a retractable lens hood, a 4 inch rack and pinion focuser with a 7:1 fine focuser, and a 360-degree camera angle adjuster. A complete line of flatteners, reducers and extenders are available, including the 67-series flattener, which provides a 90 mm imaging circle.
Optical Tube Assembly only (mount, tripod, tube holder and finder sold separately).
Specifications
|
TelescopeTOA-130NS |
TOA-130NS | TOA-130NFB |
|
Part Number |
TOK13010 | TOK13310 |
|
Aperture |
130 mm | 130 mm |
|
Resolution |
0.89" | 0.89" |
|
Limiting Magnitude |
12.3 | 12.3 |
|
Light Gathering Power |
345X | 345X |
|
Focal Length |
1000 mm | 1000 mm |
|
Focal Ratio |
f/7.7 | f/7.7 |
|
Optical Type |
Fluorite ED Triplet | Fluorite ED Triplet |
|
Tube Diameter |
156mm | 156mm |
|
Tube Length (With Lens hood retracted) |
1145mm (1012mm) | 1155mm (1022mm) |
|
Tube Weight |
10.5kg | 12.3kg |
|
Recommended Finder |
7x50 | 7x50 |
|
Metal Back Distance |
222.5mm | 274.5mm |
TOA-130NS Reducer System Chart
TOA-130NS 35 Flattener System Chart
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