The Takahashi 1.5x Extender for the Epsilon 160ED transforms the Epsilon 160ED into a longer focal length 792mm f/4.95 astrograph. The optical design features 7 lenses in 5 groups, fully correcting the coma across a 44mm image circle, large enough for full-frame sensors.
This extender delivers a centre diffraction spot size of 2 microns and 8 microns at the edge of the field. The extender can also be used visually with additional adapters (see the system chart of the Epsilon 160ED).
Note: this extender is designed specifically for the optical formula of the Epsilon 160ED, so cannot be used with any other telescope model.
Spot diagram of Takahashi Epsilon 160ED with 1.5x focal extender.
|7 lenses in 5 groups
|Connection telescope side
|Connection camera side
|M54 x 0.75 female