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Epsilon-180ED Tube assembly complete
Enquire for more information or email us specifics at sales@astro.com.sg.
Takahashi Epsilon-180ED
![](\"image/catalog/product/E_180_300_idx60963623.jpg\") | EPSILON-180ED F/2.8 is one of Takahashi’s new products in 2005. This new design incorporates an ED corrector to achieve an incredible photographic speed of f/2.8. This wide flat field instrument is ideal for photo and visual applications. It may be used with as an Astrograph for medium format, 35mm film and digital as well as many CCD cameras. Exposure Times will be greatly reduced at F2.8 and star images are a mere 10 microns across the filed. The Epsilon-180ED Hyperbolic Astrograph is unique and in a class of its own.
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Components :
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Epsilon-180 Hyperbolic Astrograph Specifications
Effective aperture ……………………………………. 180mm
Effective focal length ………………………………. 500mm
Focal ratio ……………………………………………………. f/2.8
Primary mirror ……………………………………………. 190mm
Diagonal mirror ……………………………………………. 80mm
Image circle …………………………44mm (60% illuminated)
Diameter of main tube ………………………………. 232mm
Length of main tube …………………………………. 570mm
Weight …………………………………………. Approx. 10.7kgs
Finder scope …………………………………………………. 7x50
![](\"http://astro.com.sg/images/specification-tab.gif\") | Optical Tube Assembly |
| Effective Aperture | 180mm |
| Optical Design | Hyperbolic Astrograph (Flat Field ED) |
| Primary Diameter | 190mm |
| Secondary Diameter | 80mm |
| Focal Length | 500mm |
| Focal Ratio | F/2.8 |
| Image Circle | Ø44mm |
| Photo Field | 5° |
| Star Image size across FOV | 10 microns |
| Tube Diameter | Ø232mm |
| Tube Length | 570mm (22.5”) |
| Weight | 10.7kg (23.5lbs) – w 7x50 |
| Finder Scope | 7x50 6.3° |
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