Optec-4300 to Takahashi Epsilon 180 Field Flattener Adapter
Price as Configured: $135.00
Optec offers a complete focusing rotator option for owners of Takahashi's Epsilon 180 Astrograph. Gemini's Low-Profile Focusing Rotator, coupled with the #19843 and #19844 adapters, provides a drop-in replacement for the native E180 focuser. The #19844 adapter allows you to insert the Field-Flattener directly into the Gemini. Proper spacing is maintained for the E180 Field Flattener with a recessed M68 thread. First screw the Field-Flattener into the #19844 adapter, then secure the FF/Adapter assembly into the Gemini drawtube. This sets the FF at the design distance from the primary mirror and maintains the 56mm back-focus available to the camera sensor.
Device Compatibility:
- Gemini Focusing Rotator.
Camera Side Compatibility:
- Takahashi Epsilon 180 field-flattener.
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The #19844 adapter allows owners of the Takahashi Epsilon Astrograph to insert their field flattener directly into the Gemini.
| Inside Diameter: | M68x0.75mm thread |
| Outside Diameter: | 4.80" (122mm) |
| Overall Height: | 0.62" (15.7mm) |
| Clear Aperture: | 2.66" (67.6mm) |
| Weight: | 6.8 oz (190 g) |
| Back-Focus Usage: | 0.25" (6.35mm) |
| Telescope Side Connection: | OPTEC-4300 male dovetail |
| Camera Side Connection: | M68 x 0.75mm female thread |
