Starlight Riser - spacer for 3.5" Feather Touch focusers, length 102mm
This spacer for 3.5" Feather Touch focusers extends the optical path by 102mm.
♦ Fits 3.5" diameter Feather Touch focusers
♦ Connects via a thread between the extension tube and the eyepiece adapter
♦ Reduces existing back focus due to its 102mm optical length
€346.28
Reference:
13199
Starlight Instruments Riser - Spacer for 3.5" Touch Pen Focusers, Length 102mm
This extension connects to the eyepiece or camera side of the focuser. It connects via a thread between the extension tube and the eyepiece adapter, increasing the distance from the focuser to the eyepiece or camera and thus reducing the back focus that is still present.
The riser fits all FTF35xx focusers.
Especificaciones:
| Can be used with: | 3.5" Feather Touch focusers |
| Extension (optical path): | 102 mm (4") |
| Connection to: | Draw tube and eyepiece adapte |
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