Hi,
Antonio Parisi · Feb 23, 2026, 03:24 PM
I am based in Italy and I was wandering if any of you is testing the Esatto 3.5” LP with the Epsilon 160ed adapter, Optec here especially after the tariffs is out of market.
I'm based in Germany.
It's really hard to find Optec equipment here, and if you do find something, it's so expensive that you usually don't buy it.
The PLL Esatto 3.5” LP seems to be the perfect replacement for the Optec focusers.
I'm currently considering buying an Epsilon 160ED with the PLL Esatto. I don't want to deal with the problems that the original focuser can cause.
Two things to keep in mind:
When you are using an OAG in front of a filter wheel or slider, it can get complicated to fit it in, because it may collide with the PLL focuser.
Adding a rotator to the imaging system can also be complicated. Rotators with larger motor housings, like the Wanderer or ZWO ones, cannot fit because they will collide with the PLL focuser.
The 2” PLL Arco can fit, but at 20 mm thickness it is quite thick, and in my case (ZWO wheel + ToupTek 571 mono) it won’t work. You would need a thinner filter wheel, such as the Wanderer Snowflake series.
However, only the 2” versions are thin enough. For full frame you need the 3” version, which is 23 mm thick, and that becomes difficult to use because you will also need additional adapters.
The PLL Esatto adapter kit for the focuser has three grub screws. When you loosen these screws, you can rotate the imaging train. But personally, I would prefer an automatic rotator.
Greetings from Germany
Brian