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PrimaLuceLab ESATTO 2" Robotic Microfocuser


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  • Perfect focus, simplified
  • Easily compatible with most telescope designs
  • Lightweight and durable
  • Sleek and compact Italian design
  • Fully controllable through WiFi and smartphone app

Product Details

  • Designed by the esteemed PrimaLuceLab, the ESATTO Robotic Microfocuser will satisfy even the most demanding and particular astrophotographer. The stock focuser is removable and this item is adaptable to many, many other adapters to allow use with most telescopes. ESATTO can be controlled using a Windows computer system by using the USB port, or, this can easily be used with an ESATTO smartphone app over WiFi. A tablet is also compatible, and these use the virtual handpad!


    ESATTO 2" Main Features

    • Crayford style with 18 ball bearings for a high load capacity of 5 kgs (11 lbs) with no flexure.
    • Low profile design with only 67mm thickness.
    • 15mm focuser travel with 0.04 microns per step!
    • Plenty of adapters available!
    • Remotely controlled with ease from EAGLE or any Windows computer.
    • USB-C connector with a cable to connect to any USB port 
    • Remote control with WiFi from any smartphone, tablet or computer and ESATTO Virtual HandPad app also for visual use!
    • ARCO port to easily connect the ARCO camera rotator to the ESATTO without the need for additional data or power cables.
    • Weight: 2 lbs.

    ESATTO 2 Specs Promo


    The camera side hasM56x0, 75 male threads with a stop ring to connect and manually rotate your cameras as well as adapters for M48, M57, and 2" visual backs. This 2-inch version of the ESATTO has a 67 mm depth, 15 mm of focuser tube travel, a 5 kg (11 lb) payload capacity, and an incredible resolution of 0.04 micron per step. By adding the ARCO Robotic Camera Motor, the ESATTO is capable of even more!

    PrimaLuceLab ESATTO 2 Adapter List


    This item is constructed with 18 ball bearings to handle a high load capacity up to 5kg (11 lb) with no flexure. With a low profile design of only 67 mm in thickness, this can be adapted to many different telescope OTAs with the proper adapter. Of course, this also has an easy-connect port for the ARCO Camera Rotator similarly produced by PrimaLuceLab, no additional power cables necessary.


    No matter what type of telescope you choose to use, the ESATTO is designed with you in mind. This is the universal robotic focuser ready to attach to any type of scope (with the proper adapter, of course!).

    ESATTO Telescope Attachment Variety


    Specifically designed to be easily controlled remotely, the ESATTO series allows you to take advantage of each element in your setup without interference. It has a durable USB-C port which, thanks to the included cable, can be connected to any USB port on the EAGLE or a Windows computer. To top it all off, the ESATTO can be both powered and controlled by that single cable!

    ESATTO Controls Window

    ESATTO Scope Attached

    • 67 mm Thickness
    • 15 mm Focuser Tube Travel
    • 11 lb Load Capacity
    • Resolution: 0.04 microns per step
  • specifications

    Camera/Eyepiece Side ConnectionMale M56x0.75
    Connection Side A2" at 67mm depth
  • included items

    • Perfect focus, simplified
    • Easily compatible with most telescope designs
    • Lightweight and durable
    • Sleek and compact Italian design
    • Fully controllable through WiFi and smartphone app

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5.0 Based on 1 Reviews
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Solid build and so helpful in backfocus

I ordered this product to get an in-line focuser for my Edge HD 11 as well as help with achieving the exact back focus for the Celestron OAG, ZWO EFW and ZWO camera. It is solidly made and with the right connectors will screw directly onto the SCT threads of either the Scope or the .7 Reducer. I haven’t had a lot of time with it on the system but was easily able to get almost perfect focus of the moon and seems to work well from N.I.N.A. I even ordered the 2” eye-piece attachment so I can connect a Barlow inline and do some planetary imaging. Highly recommend.