Description
The Takahashi Extender ED is a 1.5X focal length extender designed for use with the TSA-120, TOA-130/150 and FSQ-85 telescopes. The extender is constructed using extra-low dispersion (ED) glass and features a 2 inch barrel design.
Specifications
Telescope with Adapter |
2" ED-1.5X EX with FSQ-85ED | 2" ED-1.5X EX with 35-FL and FS-130ED | 2" ED-1.5X EX with 35-FL and FS-130NS/NFB | 2" ED-1.5X EX with 35-FL and FS-150B | 2" ED-1.5X EX with 35-FL and TSA-120 |
Adapter Part Number |
TKA37595 | TKA37595 | TKA37595 | TKA37595 | TKA37595 |
Aperture |
85mm | 130mm | 130mm | 150mm | 120mm |
Resolution |
1.36" | 0.89" | 0.89" | 0.77" | 0.97" |
Limiting Magnitude |
11.4 | 12.3 | 12.3 | 12.7 | 12.1 |
Light Gathering Power |
147X | 345X | 345X | 460X | 293X |
Focal Length |
680mm | 975mm | 1500mm | 1650mm | 1350mm |
Focal Ratio |
f/8.0 | f/7.5 | f/11.5 | f/11.0 | f/11.3 |
Image Circle Diameter |
44mm | --- | 44mm | 44mm | 44mm |
Optical Type |
Doublet ED Quadruplet | Triplet ED Quintuplet | Double ED Triplet | Double ED Triplet | ED Triplet |
Tube Diameter |
95mm | 156mm |
156mm |
179mm |
125mm |
Tube Length (With Lens hood retracted) |
615mm (525 mm) |
830mm (700mm) |
NS: 1145mm (1012mm) NFB: 1155mm (1022mm) |
1270mm (1110mm) |
990mm (870mm) |
Tube Weight |
3.6kg | 12.7kg |
NS: 10.5kg NFB: 12.3kg |
15.2kg |
6.7kg |
Recommended Finder |
6x30 | 7x50 | 7x50 | 7x50 | 7x50 |
Metal Back Distance |
117.5 mm | 117.5mm | 117.5mm | 117.5mm | 117.5mm |
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