PrimaLuceLab ESATTO 3.5" Low Profile Robotic Focuser

Starting Price: $1,195.00
Price as Configured: $1,195.00
Brand: PrimaLuceLab / SKU: PLL-EST35LP
ESATTO 3,5” LP is the most advanced yet affordable low profile robotic focuser specially designed for the most demanding astrophotography! At just 32mm of thickness, ESATTO 3,5” LP provides a large 90mm free aperture with 10mm of travel, impressive 10 kg of payload capacity and an astounding resolution of 0.01 microns per step! ESATTO 3,5” LP has been designed for telescopes with little available backfocus, requiring a low profile focuser - Great for astrographs! And like all the other ESATTO focusers, it comes with a USB-C port to let control it from your EAGLE or any Windows computer, ARCO port to let you connect to ARCO rotator, temperature probe port, WiFi connection to let you wirelessly control with a smartphone or tablet and dimmable LED lights! Check out more about ESATTO (yes, it's Italian for "EXACT") below.
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PLL-8410011 - PrimaLuceLab 3" Visual Back for ESATTO 3.5" LP
PLL-8410011 - PrimaLuceLab 3" Visual Back for ESATTO 3.5" LP
About This Product
If you want to connect a camera with a 3" nosepiece to your ESATTO 3.5” LP, just connect the 3" visual back to the M98 thread of ESATTO 3.5” LP. This adapter has an internal brass compression ring to avoid scratching the inserted nosepiece as well as 3 locking screws (120° separation) for a perfect fit, even for heavy cameras or accessories. Optical thickness 12.5mm.
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PLL-3600361 - PrimaLuceLab ESATTO 3.5" LP for OfficinaStellare Veloce RH300
PLL-3600361 - PrimaLuceLab ESATTO 3.5" LP for OfficinaStellare Veloce RH300
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The adapter ESATTO 3,5” LP for OfficinaStellare Veloce RH300 allows you to install ESATTO 3,5" LP focuser to Veloce RH300 telescopes by Officina Stellare. Optical thickness 9mm.
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PLL-3600362 - PrimaLuceLab ESATTO 3.5" LP for Telescopes with large 3.3" SC Thread
PLL-3600362 - PrimaLuceLab ESATTO 3.5" LP for Telescopes with large 3.3" SC Thread
About This Product
Adapter ESATTO 3.5” LP for telescopes with large 3.3" SC thread allows you to connect the ESATTO 3.5" LP to Celestron SCT (11" and 14") and EdgeHD (925, 1100, and 1400) models. Since the ESATTO has a depth of 32mm and the 3.3” adapter has only 2mm of optical thickness, this leaves 112mm of backfocus for your camera and accessories, also when used together with the Celestron EdgeHD .7x focal reducers for 925, 1100 and 1400 models.
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Recommended Add-ons and Accessories

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PLL-8410011 - PrimaLuceLab 3" Visual Back for ESATTO 3.5" LP
PLL-8410011 - PrimaLuceLab 3" Visual Back for ESATTO 3.5" LP
$95.00
« Back to All Add-ons
PLL-8410011 - PrimaLuceLab 3" Visual Back for ESATTO 3.5" LP
About This Product
If you want to connect a camera with a 3" nosepiece to your ESATTO 3.5” LP, just connect the 3" visual back to the M98 thread of ESATTO 3.5” LP. This adapter has an internal brass compression ring to avoid scratching the inserted nosepiece as well as 3 locking screws (120° separation) for a perfect fit, even for heavy cameras or accessories. Optical thickness 12.5mm.
PLL-3600361 - PrimaLuceLab ESATTO 3.5" LP for OfficinaStellare Veloce RH300
PLL-3600361 - PrimaLuceLab ESATTO 3.5" LP for OfficinaStellare Veloce RH300
$295.00
« Back to All Add-ons
PLL-3600361 - PrimaLuceLab ESATTO 3.5" LP for OfficinaStellare Veloce RH300
About This Product
The adapter ESATTO 3,5” LP for OfficinaStellare Veloce RH300 allows you to install ESATTO 3,5" LP focuser to Veloce RH300 telescopes by Officina Stellare. Optical thickness 9mm.
PLL-3600362 - PrimaLuceLab ESATTO 3.5" LP for Telescopes with large 3.3" SC Thread
PLL-3600362 - PrimaLuceLab ESATTO 3.5" LP for Telescopes with large 3.3" SC Thread
$95.00
« Back to All Add-ons
PLL-3600362 - PrimaLuceLab ESATTO 3.5" LP for Telescopes with large 3.3" SC Thread
About This Product
Adapter ESATTO 3.5” LP for telescopes with large 3.3" SC thread allows you to connect the ESATTO 3.5" LP to Celestron SCT (11" and 14") and EdgeHD (925, 1100, and 1400) models. Since the ESATTO has a depth of 32mm and the 3.3” adapter has only 2mm of optical thickness, this leaves 112mm of backfocus for your camera and accessories, also when used together with the Celestron EdgeHD .7x focal reducers for 925, 1100 and 1400 models.
PLL-3600363 - PrimaLuceLab Adapter from M98 to M68 with Stop Ring for ESATTO 3.5" LP
PLL-3600363 - PrimaLuceLab Adapter from M98 to M68 with Stop Ring for ESATTO 3.5" LP
$125.00
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PLL-3600363 - PrimaLuceLab Adapter from M98 to M68 with Stop Ring for ESATTO 3.5" LP
About This Product
Adapter from M98 to M68 with stop ring for ESATTO 3.5" LP allows you to connect any camera or accessory with M68 female thread. Just thread this adapter to the M98 thread of the ESATTO 3.5" LP draw tube. Thanks to the M68 stop ring for ESATTO 3.5" LP you can also fix the camera at a precise angle in order to better frame your camera sensor at the desired object. Optical thickness is 4mm.
PLL-3600365 - PrimaLuceLab ESATTO 3.5" LP for Officina Stellare Veloce RH200
PLL-3600365 - PrimaLuceLab ESATTO 3.5" LP for Officina Stellare Veloce RH200
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PLL-3600366 - PrimaLuceLab ESATTO 3.5" LP for Telescopes with SC Thread
PLL-3600366 - PrimaLuceLab ESATTO 3.5" LP for Telescopes with SC Thread
$95.00
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PLL-3600366 - PrimaLuceLab ESATTO 3.5" LP for Telescopes with SC Thread
About This Product

By adding this adapter, you can connect the ESATTO 3.5" LP low profile robotic focuser directly onto the back of SC telescopes. Optical thickness of this adapter is just 10mm.

PLL-3600367 - PrimaLuceLab Adapter for ESATTO 3.5" LP for GSO/Orion/TPO Ritchey-Chretien 10, 12, 14 and 16 inches
PLL-3600367 - PrimaLuceLab Adapter for ESATTO 3.5" LP for GSO/Orion/TPO Ritchey-Chretien 10, 12, 14 and 16 inches
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PLL-3600367 - PrimaLuceLab Adapter for ESATTO 3.5" LP for GSO/Orion/TPO Ritchey-Chretien 10, 12, 14 and 16 inches
About This Product
If you are searching for the most precise but low profile robotic focuser to use the GSO/Orion/TPO Ritchey-Chretien 10, 12, 14 and 16 inches (both aluminum and carbon tubes) for astrophotography, this adapter allows you to connect ESATTO 3,5" LP to the M117 thread of these telescope. Based on the camera and imaging train you want to connect, you may need extenders to reach the focus with your camera. Optical thickness of this adapter is just 3mm.

PLL-3600385 - PrimaLuceLab Adapter from M98 to M72 Female for ESATTO 3.5” LP
PLL-3600385 - PrimaLuceLab Adapter from M98 to M72 Female for ESATTO 3.5” LP
$125.00
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PLL-3600385 - PrimaLuceLab Adapter from M98 to M72 Female for ESATTO 3.5” LP
About This Product
Adapter from M98 to M72 female for ESATTO 3,5" LP allows you to connect any camera or accessory with M72 male thread. Just thread this adapter to the M98 thread of the ESATTO 3,5" LP draw tube. This adapter adds no optical thickness.

PLL-3600386 - PrimaLuceLab Adapter for ESATTO 3.5” LP for PlaneWave DeltaRho 350
PLL-3600386 - PrimaLuceLab Adapter for ESATTO 3.5” LP for PlaneWave DeltaRho 350
$295.00
« Back to All Add-ons
PLL-3600386 - PrimaLuceLab Adapter for ESATTO 3.5” LP for PlaneWave DeltaRho 350
About This Product
The adapter ESATTO 3,5” LP for PlaneWave DeltaRho 350 allows you to install ESATTO 3,5" LP focuser to DeltaRho 350 telescopes by PlaneWave. Optical thickness 23.36mm.

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Price as Configured: $1,195.00

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ESATTO 3,5” LP low profile robotic focuser - main features:
  • Special low profile design for high load capacity (up to 10 kgs) and precision.
  • Low profile with only32mm thickness.

  • 10mm focuser travel with an incredible resolution of 0.01 microns per step!

  • Special optional adapters to easily connect to many different telescopes.
  • Remotely controlled from EAGLE or any Windows computer, it's also provided with ASCOM driver.
  • USB-C connector offering greater reliability and can be connected to any USB type port thanks to the included cable.
  • It works also with PLAY astrophotography software, much more than a standalone program.
  • Remote control with WiFi from any smartphone, tablet or computer and ESATTO Virtual HandPad app for visual use!
  • Many threaded camera adapters with stop ring on the camera side to rotate and keep the camera in the optical axis.
  • ARCO port to easily connect the ARCO camera rotator and field de-rotator to the ESATTO without the need for additional USB or 12V power cables.

  • Weight: 1150 gr.

The ESATTO 3,5” low profile robotic focuser has been designed to meet the most demanding requests of telescopes with low backfocus, like many astrographs. This way, with a body thickness of just 32mm, you can take advantage of a motorized focuser with a very large 90.0mm free aperture that is able to carry up 10 kg of imaging accessories.

The special design gives ESATTO 3,5” LP an impressive 10 kg (22 lb) of payload capacity with the focusing smoothness that is required by modern astrophotography techniques (eg. autofocusing with V-curve). ESATTO 3,5” LP has a draw tube with 90.0mm of free aperture, and 10mm of travel, offering to an incredible resolution of 0.01 microns per step!

ESATTO 3,5” LP comes with PLAY, the astrophotography software developed by PrimaLuceLab in order to record beautiful pictures of the night sky in the simpler way and with the telescope, mount and other accessories you prefer! PLAY includes many features needed for astrophotography and it allows you to configurate your telescope by selecting OTA and mount provided with ASCOM drivers (tested with ASCOM platform 6.4 and later), control focus with ESATTO or SESTO SENSO 2 and camera rotation with ARCO. In order to use PLAY you have to have at least ESATTO focuser or SESTO SENSO 2 focusing motor and, if you install PLAY in the EAGLE computer, it automatically adds more advanced features!

ESATTO 3,5” LP draw tube travel moves on the telescope side and different optional pre-made adapters are already available to connect to different telescopes. If you can’t find the adapter for your telescope, in the user manual you find the dimensions of the telescope side adapter so you can manufacture your custom adapter. On the camera side, ESATTO 3,5” LP has a M98x1 female thread and, through a complete series of optional camera adapters with stop ring, it allows you to directly connect cameras or to the ARCO rotator. The stop ring allows you to lock the camera at a precise angle to better frame the object.




ESATTO 3,5 LP low profile focuser