Canon EF/EF-S Lens Controller for ASCOM/INDI

Review: Is it worth it for Astrophotography?

pinefeat canon ascom focus

This [vendor name withheld] EF/EF-S adapter that connects your dedicated astro camera to a Canon EF or EF-S lens and then provides ASCOM/INDI supported auto-focus capabilities.

Introduction

Sorry, but you'll have to wait just a wee bit longer until I have this finished. In the meantime, please drool over the image and check out my teaser page.

Key Specifications

  • Key Features:
    • Canon EF/EF-S mount on one end
    • T-mount on the other end
    • USB port in the middle

Design & Build Quality

  • ASCOM/INDI compatible focuser drivers provided

Performance & Features

Okay, this may be hard to wrap your head around because it's so simple: this adapter has a T-mount on one end to screw your astro camera into and a Canon EF mount on the other end to attach a Canon EF or EF-S lens. In the middle is a micro-USB port that provides power and data. Once you have it connected, it shows up as an ASCOM or INI focuser and your software can control the very accurate Canon auto-focus mechanics and aperture with insanely good precision.


Until next time, clear skies and I'll see you in the dark! Join the Crew and let me know what's on your mind. Support the Mission to gain access to all of my raw astro-imaging data! All content copyright 2026 by AstropotaMedia.com.

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