Focuser robotisé Sesto Senso 2

Avec une bonne collimation (faite avec le train optique complet et sur une étoile défocalisée), la mise au point est une étape essentielle dans l'obtention d'images de qualité.

L'utilisation d'un masque de Bathinov permet d'obtenir une mise au point correcte mais pas parfaite, tant que l'ajustement se fait manuellement et malgré l'assistance logicielle (par Sharcap ou NINA).

Aussi un moteur de mise au point robotisé s'avère indispensable : ajustement très fin, absence de vibration et contrôle automatisé par certains logiciels (comme NINA).

J'ai opté pour cet excellent modèle de chez Primaluce Labs : le Sesto Senson 2 :

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.

It works also with PLAY astrophotography software, much more than a standalone program. SESTO SENSO 2 can be controlled also by using third party softwares thanks to the provided ASCOM driver.

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 rotator: SESTO SENSO 2 now comes with ARCO port to easily connect the ARCO rotator without the need for additional data or power cables.