PrimaLuce Lab ESATTO 4" Robotic Focuser - EST4 10mm Eyepieces 4 Waterproof: Yes Gas filled:

4 Waterproof: Yes Gas filled: Yes Warranty: 30 years Rubber Coated Body: Yes

SE combines the classic heritage of the original orange tube telescopes with the latest state-of-the-art features

All the inner of the Askar 71F's dew shield is covered with matting paint to effectively reduce stray light reflections

Reverse Polarity Protection

The Baader U Filter has become the choice of UV imagers exploring the UV world of landscape

PrimaLuce Lab ESATTO 4" Robotic Focuser - EST4 10mm Eyepieces 4 Waterproof: Yes Gas filled:The PrimaLuce Lab ESATTO 4" is the large dimension robotic focuser designed for observatory class telescopes or for astrographs that need a large free aperture, like the Takahashi FSQ 106. Compared to the smaller models, ESATTO 4" offers a larger free aperture of 102. 2mm, a longer draw tube travel of 35mm and a higher payload capacity of 10 kg. As always, the ESATTO 4 comes with the incredible technical features of all the ESATTO focusers: resolution