This adapter allows you to connect the Prima Luce Lab Esatto 3" robotic microfocuser to the Sky-Watcher Esprit 120 & 150 reducers. Engineered in-house by Testar and made from CNC-machined and hard-anodized 6061-T6 Aluminium.

The adapter is designed to have the SkyWatcher Esprit 120/150 reducers to slide inside the adapter and the Esatto.

The SkyWatcher flattener/reducer for the Esprit 150 require a total spacing from back of tube of 155mm (distance between silver ring to telescope side of the flattener, excluding the internal female thread of the flattener). The total spacing can be filled with:

Esatto3" to Esprit 120/150 adapter PL3200253: 20mm
Prima Luce Lab Esatto 3" 40mm extension: 40mm
Esatto 3" - 58mm
Esatto 3" excursion: 17 mm
Testar adapter for the Esatto 3" and Esprit 150: 20mm

For a total of 155mm

If you want to add the Arco 3" rotator to the optical train:

Esatto3" Esprit adapter PL3200253: 20mm
Esatto 3": 58mm
ARCO 3" with Esatto 3" adapter PL3600458 - 24.5mm
Prima Luce Lab Extension: 25mm
Esatto 3" excursion: 7.5mm
Testar adapter for the Esatto 3" and Esprit 150: 20mm

For a total of 155mm

Specifications

Optical length	20mm
Clear aperture	81 mm
Outer diameter	94 mm
Connection side A	M81 x 1 female
Connection side B	M86 x 1 male
SKU	TE-ESATTO3-ESPRIT.REDUCER

TESTAR ADAPTERS