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TAKAHASHI
This extender is specific to the hyperbolic Newtonian optical formula of the Takahashi Epsilon-180ED. The focal length increases to 770mm and the aperture ratio to F/4.3.
Available Upon Request
This category includes products which are not kept in stock and for some reasons -which don’t depend on our company- can’t be available in less than 14 days. Specifically, this category includes new products thar are pre-advertised by manufacturers, however they are not available in Greece yet. You can pre-order these items with a special preferential price. If the estimated arrival date of this product is already known, then the estimated date will be written above the indication “AVAILABLE UPON REQUEST”.
EXTENDER 1.5X FOR TAKAHASHI EPSILON-180ED
For Epsilon-180ED users who want to shoot at longer focal lengths than the native 500mm, Takahashi offers a 1.5x extender. The focal length increases to 770mm and the aperture ratio to F/4.3. This extender is specific to the hyperbolic Newtonian optical formula of the Takahashi Epsilon-180ED; it cannot be used on another telescope.
It includes 7 lenses, divided into 5 groups. The coma is fully corrected on an image circle of 44 mm in diameter which covers the full frame. As shown on the spot-diagram, the diffraction spot measures 2 microns in the center of the field and 5 microns on the periphery.
The Takahashi ε-Extender E-180ED can be used for both visual and photographic purposes; refer to the system-chart for assemblies. The input mechanical interface is M68 x 0.75 male thread. The output is M54 x 0.75 female. Mounting a camera is direct, with the addition of a Takahashi wide field T-ring specific to your camera brand. Although possible, the use of 2" filters (with M48 thread) screwed into the extender is not recommended. They can cause unsightly reflections. Also, due to the construction of the extender, it is no longer possible to screw these filters into the wide field T-ring, as is usually allowed. Any filters must therefore be attached either directly to the camera (as a clip to be placed directly in front of the sensor), or in a filter wheel in the case of a camera.
| Net Weight (g) | 550 |
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Diagram of threads and focal point position of the Takahashi 1.5x ε-Extender E-180ED
Spot-diagram of the Takahashi Epsilon-180ED telescope associated with 1.5x ε-Extender E-180ED
All orders we receive until 15:00 concerning products in our warehouse, processed on the same day
Well-trained scientific and technical personnel are available to you at any time, to solve the questions and concerns about your equipment.
If you are not satisfied with the product you received, you can return it within 14 days of receipt.
Experience you can trust. Planetarium of Thessaloniki is the largest supplier of astronomy goods in the Balkans
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