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Navigating Tariffs: Due to the current volatile tariff environment and associated logistics challenges, O'Telescope is unable to fulfill shipments to the United States. Orders submitted with a U.S. shipping address will be refunded, with the payment gateway transaction fee deducted. This restriction does not affect BackyardEOS or BackyardNIKON, which remain available as digital downloads.
Inventory closeout sale, everything must go. Up to 35% off. Some conditions apply.
We are closing our inventory side of the business and focusing solely on software - going back to our roots so to speak. No store coupons required, all prices have been marked down. First come, first served, until quantities last. We are no longer placing orders with manufacturers. Absolutely no rain checks. We reserve the right to cancel and refund orders at our sole discretion. We do our best to maintain our inventory accurate, but mistakes do happen, if you purchase an item that is no longer in stock, you will be refunded. The sale does not apply to some higher-end items such as 10Micron. Prices subject to change without notice. ALL SALES ARE FINAL.
Occasionally, we find a box under a box under a box in the back of the warehouse with hidden treasures, and when we do, we add these items on the site, so even though you may not find what you're looking for today, it could automagically appear next week.
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Focusers
PrimaLuceLab creates innovative products for astronomy like EAGLE control unit, SESTO SENSO motorized focuser, ECCO environmental controller and PLUS mechanical system.
12 products
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Adapter ESATTO 3" for GSO/Orion/TPO Ritchey-Chretien 10, 12, 14 and 16 inches [PRI-PL3600236]
$155.86 CAD$190.07 CAD1 in stock specialorder On saleScheduled DeliveryPrimaluceLab: Adapter ESATTO 3" for GSO/Orion/TPO Ritchey-Chretien 10, 12, 14 and 16 inches
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Adapter ESATTO 3" for Takahashi telescopes with M72 thread [PRI-PL3600245]
$143.71 CAD$175.26 CAD1 in stock specialorder On saleScheduled DeliveryPrimaluceLab: Adapter ESATTO 3" for Takahashi telescopes with M72 thread
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![Adapter ESATTO 3" for SkyWatcher ESPRIT 120 ED and 150 ED [PRI-PL3600253]](https://www.otelescope.com/uploads/monthly_2020_09/PRI-PL3600288adattatore-esatto-3-per-skywatcher-esprit-100-ed.jpg.b87381dca7c018e641dd7b95277f4002.jpg)
Adapter ESATTO 3" for SkyWatcher ESPRIT 120 ED and 150 ED [PRI-PL3600253]
$313.68 CAD$382.54 CAD1 in stock specialorder On saleScheduled DeliveryPrimaluceLab: Adapter ESATTO 3" for SkyWatcher ESPRIT 120 ED and 150 ED
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Adapter from M81 to M68 with stop ring for ESATTO 3" [PRI-PL3600262]
$119.43 CAD$145.65 CAD1 in stock specialorder On saleScheduled DeliveryPrimaluceLab: Adapter from M81 to M68 with stop ring for ESATTO 3"
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Adapter from M81 to M54 with stop ring for ESATTO 3" [PRI-PL3600275]
$119.43 CAD$145.65 CAD1 in stock specialorder On saleScheduled DeliveryPrimaluceLab: Adapter from M81 to M54 with stop ring for ESATTO 3"
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Adapter from M81 to T2 with stop ring for ESATTO 3" [PRI-PL3600282]
$119.43 CAD$145.65 CAD1 in stock specialorder On saleScheduled DeliveryPrimaluceLab: Adapter from M81 to T2 with stop ring for ESATTO 3"
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![65mm extension tube for ESATTO 3" [PRI-PL3600284]](https://www.otelescope.com/uploads/monthly_2020_07/PRI-PL3600284-prolunga-65mm-per-esatto-3-pollici.jpg.0199e5fc38a2351d441169a7dde37c74.jpg)
65mm extension tube for ESATTO 3" [PRI-PL3600284]
$155.86 CAD$190.07 CAD1 in stock specialorder On saleScheduled DeliveryPrimaluceLab: When installing ESATTO 3" in a telescope with a long travel focuser (such as those usually found on refractors), it is necessary to take into account the lower travel of ESATTO 3" since it's a micrometric focuser. For this reason we have designed this 65mm extension that can be installed between ESATTO 3" and the telescope tube. A precise dovetail coupling system with 3 screws set at 120° allows you to manually rotate the focuser.
When installing ESATTO 3" in a telescope with a long travel focuser (such as those usually found on refractors), it is necessary to take into account the lower travel of ESATTO 3" since it's a micrometric focuser. For this reason we have designed this 65mm extension that can be installed between ESATTO 3" and the telescope tube. A precise dovetail coupling system with 3 screws set at 120° allows you to manually rotate the focuser. -
Adapter ESATTO 3" for Takahashi TSA 120 [PRI-PL3600296]
$362.24 CAD$441.76 CAD1 in stock specialorder On saleScheduled DeliveryPrimaluceLab: Adapter ESATTO 3" for Takahashi TSA 120
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![SESTO SENSO 1 33mm adapter [PRI-SESTOSENSO-AD33]](https://www.otelescope.com/uploads/monthly_2020_07/PRI-SESTOSENSO-AD33IIadattatore-33mm-per-sesto-senso-2_1.jpg.b41cfb72162ecb2fc46f93337c949211.jpg)
SESTO SENSO 1 33mm adapter [PRI-SESTOSENSO-AD33]
$70.51 CAD$117.52 CAD1 in stock specialorder On saleScheduled DeliveryPrimaluceLab: This 33mm adapter allow you to install SESTO SENSO 1 on focusers that come with 33mm diameter large shaft, like the 2,5" and 3" FeatherTouch (or other focusers with 33mm diameter large shaft). SESTO SENSO as standard connects to focusers that comes with 25mm diameter shaft (that are the most of the focusers on the market): in order to connect it to focusers that comes with 33mm diameter large shaft, you need to add this adapter.
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![SESTO SENSO 1 37mm adapter [PRI-SESTOSENSO-AD37]](https://www.otelescope.com/uploads/monthly_2018_12/PRI-SESTOSENSO-AD37.jpg.3422abe77a25a8026038cd3d7bd47caf.jpg)
SESTO SENSO 1 37mm adapter [PRI-SESTOSENSO-AD37]
$78.51 CAD$130.85 CAD1 in stock specialorder On saleScheduled DeliveryPrimaluceLab: This 37mm adapter allow you to install SESTO SENSO 1 on focusers that come with 37mm diameter large shaft, like the 3,5" FeatherTouch and FSQ-130 (or other focusers with 37mm diameter large shaft). SESTO SENSO as standard connects to focusers that comes with 25mm diameter shaft (that are the most of the focusers on the market): in order to connect it to focusers that comes with 37mm diameter large shaft, you need to add this adapter.
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![Temperature sensor for ECCO ,SESTO SENSO and ESATTO [PRI-SESTOSENSO-TEMP]](https://www.otelescope.com/uploads/monthly_2018_12/PRI-SESTOSENSO-TEMP.jpg.cfc275e087b6aa4f88d959e2dada52b6.jpg)
Temperature sensor for ECCO ,SESTO SENSO and ESATTO [PRI-SESTOSENSO-TEMP]
$34.45 CAD$42.01 CAD9 in stock specialorder On saleScheduled DeliveryPrimaluceLab: This temperature sensor is compatible both with ECCO, the environmental computerized controller for EAGLE, ESATTO and with SESTO SENSO, the robotic focusing motor for telescopes.
When used with ECCO, this temperature sensor allow it to record optics temperature for automatic power management of dew heaters connected to the EAGLE. When used with SESTO SENSO it's used in order to compensate focusing for changes in temperature. -
![SESTO SENSO 2 robotic focusing motor [PRI-SESTOSENSOII]](https://www.otelescope.com/uploads/monthly_2019_11/PRI-sesto-senso-2-robotic-focusing-motor.jpg.f38240e5c44123919107ec2cd7f45c8c.jpg)
SESTO SENSO 2 robotic focusing motor [PRI-SESTOSENSOII]
$367.11 CAD$447.69 CAD1 in stock specialorder On saleScheduled DeliveryPrimaluceLab: SESTO SENSO 2 - The highly accurate, advanced, vibration free, robotic focusing motor for your telescope! Connect it to the USB port of your EAGLE or Windows® computer to electronically control focus while still allowing you to manually move your focuser by hand if needed. If you don’t want to focus using a computer, you can connect wirelessly from any smartphone or tablet using the integrated Virtual HandPad via the built-in Wifi network in the SESTO SENSO 2! Thanks to the Self Centering Clamp technology (SCC), SESTO SENSO 2 can be installed on most focusers without the need of external brackets. The supplied FOCUS Manager software and ASCOM driver allow easy configuration of the many advanced features of SESTO SENSO 2. Thanks to the precisely controlled motor with integrated electronics, SESTO SENSO 2 achieves incredible precision of just 0.7 microns.
Based on the success of the previous generation motor PrimaLuceLab introduced in 2017, SESTO SENSO 2 adds even more great new features. SESTO SENSO 2 incorporates into a single enclosure (87.5 x 64 x 43mm) all the elements that comprise a motorized focusing system but, thanks to the great designers at PrimaLuceLab, it includes many new features:
USB-C port to connect to any standard computer or EAGLE USB port: the USB-C port is a more sturdy, reliable connection and it is also reversible, allowing for easier connections in the dark
Integrated WiFi connection with Virtual HandPad: if you don’t want to use a computer to control your telescope’s focuser, you can use your smartphone or tablet connected to the SESTO SENSO 2 WiFi network to control it with the Virtual HandPad.
Self Centering Clamp (SCC) technology to connect to focusers without external brackets: easily connect it to most focusers (if needed, optional adapters are available for other focusers) with the bushings included in the box, improved over the previous version.
Dimmable LED lights: LED lights on the SESTO SENSO 2 body are dimmable and can even be turned off completely. This way you can reduce light emission if you prefer during astrophotography or visual use.
Compatible with ARCO camera rotator: SESTO SENSO 2 now comes with ARCO port to easily connect the ARCO camera rotator without the need for additional data or power cables.Compact, lightweight and integrated design
SESTO SENSO 2 integrates all of the control electronics into a single compact enclosure with its ports displayed on the side. In the upper area you find the dimmable status LEDs that can even be turned off for better light management at night. Below the LEDs, you will find the USB-C port to connect SESTO SENSO 2 to an EAGLE or other Windows® computer using the provided cable, the ARCO port to power and control the optional ARCO camera rotator with a single cable, the 12V power supply port that powers the motor and integrated electronics using the provided cigarette lighter socket power cable (an optional cable is also available to power it directly from the EAGLE) and the port for the optional temperature sensor that allows (by using third party software) to perform auto focus adjustment procedures with the ambient temperature variation.Control it via USB-C from the EAGLE or from any Windows® computer with a standard USB port
SESTO SENSO 2 comes with a sturdy USB-C port to connect to the USB port on your EAGLE or any Windows® computer (cable provided), and control it via the provided FOCUSER Manager software or the ASCOM driver. SESTO SENSO 2 uses a USB-C port providing increased reliability with its reversible plug: you can connect the USB cable in either orientation, preventing problems when connected in the dark.Control via WiFi, from any smartphone or tablet via the Virtual HandPad
SESTO SENSO 2 now has built-in WiFi remote control capability so you can control it from any smartphone or tablet, without the need of a computer! Just connect your device to the WiFi network of the SESTO SENSO 2 and start the app - You will be able to control the focuser by using the dedicated Virtual HandPad. Thanks to convenient preset settings, you can easily record and move the focuser to specific predetermined positions - Great for visual use too! WiFi control works even if SESTO SENSO 2 is also connected to a computer so you can control it simultaneously from 2 devices.Easily connects to most focusers thanks to its Self Centering Clamp (SCC) without the need of external brackets
SESTO SENSO 2 doesn’t require any external brackets to attach to focusers: just remove the fine and coarse knobs from your focuser and you will reveal a shaft. SESTO SENSO 2 is designed to fit to a 25mm diameter shaft, common to most focusers on the market (optional adapters available for focusers with shaft diameters of 33 or 37mm - other diameters are currently not compatible). SESTO SENSO 2 uses a new shaft connection bushing, improved over the previous generation, that has been designed to accommodate different focusers more easily. Another advantage of the SCC technology is that you can always use the manual (coarse) knobs of your focuser, even if SESTO SENSO 2 is installed (if you move the focuser by hand, in order to control the focuser again with SESTO SENSO you will only need to manually bring the focuser to the minimum position and press the "Set position as 0" button to calibrate it again). SESTO SENSO is compatible with many telescopes, like (but not lmited to these):SkyWatcher EVOSTAR 72 ED, 80 ED, 100 ED and 120 ED
SkyWatcher ESPRIT 80 ED, 100 ED and 120 ED
SkyWatcher Newton 200mm and 250mm, f/4 and f/5
Takahashi FSQ85
Takahashi FSQ106
GSO Ritchey-Chretien with 2" and 3" focusers
TS-Optics TSED80F7 (with 33mm optional adatper)
TS-Optics TSApo60f6RED (with 33mm optional adatper)
TS-Optics TSAPO72F6 (with 33mm optional adatper)
TS-Optics TLAPO804 (with 33mm optional adatper)
TS-Optics TS71SDQ
TS-Optics TS86SDQ
SESTO SENSO 2 can be used with many different telescopes, like Newtonians, refractors, and Schmidt-Cassegrain (and aplanatic versions) with external manual focusers. If you are searching for a motorized focuser for your SC/RC type telescope and you haven’t already installed an external focuser, may we suggest our ESATTO focuser with a high load capacity, integrated motor, and the same advanced electronic control found in the SESTO SENSO 2.Connect via a single cable to ARCO to remotely control camera rotator
SESTO SENSO 2 includes a special port allowing ARCO, the camera rotator, to be directly connected. With ARCO, you can remotely control the rotation angle of your camera in order to achieve perfect framing of the object you want to record. SESTO SENSO 2 and ARCO are designed to work together - You will need only one short interconnect between the two!
Compact and lightweight device, no need for external controllers
SESTO SENSO 2 encloses in a single compact package (dimensions 87.5 x 64 x 43mm) both the motor and the control electronics, all with the great design you’ve come to expect from PrimaLuceLab products. The housing is made up of a single block of aluminum (SESTO SENSO 2 weight is 380 grams), CNC machined, with a beautiful red anodized finish. The upper part of the SESTO SENSO 2 is made up of rigid plastic in order to allow the WiFi antenna to operate for an easier remote control.SESTO SENSO 2 robotic focusing motor - What’s included:
- SESTO SENSO 2
- 12v DC cigarette-style plug power cable
- USB-C to standard USB cable
- Hex keys for assembly
- 5 color-keyed bushings for different focuser types
- Quick installation guide
