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TOA-130NFB Tube assembly ONLY
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TOA-130NFB Tube assembly
![](\"image/catalog/product/takahashi-TOA-130S_OTA.jpg\") | TOA-130S and TOA-130F are Takahashi\'s new top of the line triplet Ortho-Apochromatic refractors. TOA-130S comes with 2.7\" focuser while TOA-130F is equipped with a 4\" focuser. This instrument has superb color correction and is ideal for photo/visual/CCD applications.
(Eyepiece unit with bearing, MEF built-in)
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Components :
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Specifications for TOA-130F
Aperture : 130mm
Focal length : 1,000mm
Focal ratio : F/7.7
With Flattener (TOA-FL67)
Focal length : 1,000mm
Focal ratio : F/7.7
Image circle : φ92mm (60% illuminated)
Photographic field : 5.3°
With Reducer (TOA-RD)
Focal length : 750mm
Focal ratio : F/5.8
Image circle : φ50mm (60% illuminated)
Photographic field : 3.8°
| Optical Tube Assembly | |
| Effective Aperture | 130mm |
| Optical Design | Triplet Ortho-Apochromat |
| Focal Length | 1000mm - 754mm w/ reducer |
| Focal Ratio | F/7.7 - F5.8 w/ reducer |
| Tube Diameter | 156mm |
| Tube Length | 1015mm (1145mm extended) |
| Tube Weight | 10.5 kg |
| Resolving Power | 0.89 arc sec |
| Limiting Magnitude | 12.3 |
| Light Collecting Power | 345X |
| Photographic Field | Ø5.3° - 3.8° w/ reducer |
| Finder Scope | 7x50 6.3° |
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