OCAL Electronic Collimator 4.0

The OCAL Electronic Collimator 4.0 is a precision alignment tool designed for astrophotographers and telescope users who demand accurate collimation, especially with short focal length optical systems and high-resolution imaging sensors with extremely small pixels. This latest generation introduces a series of innovations that improve image quality, usability, and alignment precision—all while reducing size and cost.

Key Features

• Advanced Imaging Performance
  Featuring high-resolution CMOS technology, the OCAL 4.0 delivers sharp, clear visuals for precision collimation. The updated 4:3 aspect ratio provides a wider and more effective view of the telescope’s internal structure, allowing for easier and more intuitive adjustments.

• Motorized Linear Sensor Movement
  Each unit includes an internal motor that enables linear movement of the imaging chip. This allows for fine-tuned focus control via the included software during the collimation process, ensuring each optical element can be precisely aligned without disrupting the imaging setup or optical train.

• Interactive Alignment Software
  The companion software enhances functionality with real-time tools including:

  • Adjustable colored centering circles

  • Control over circle thickness, contrast, and exposure

  • A rotatable crosshair for assessing concentric alignment and the orientation of the secondary mirror spider

• Stable, Compact Construction
  Built using the same 3A processing and high-precision assembly as the previous generation, the OCAL 4.0 is more compact and lightweight—minimizing sensitivity to minor impacts and maintaining calibration accuracy over time.

• Refined Exterior Design
  A red housing with clearly marked reference rings makes it easier to identify the reflective surface and align components efficiently.

• Optimized for Cost and Performance
  Streamlined production and component design reduce the retail price while preserving high-end performance—offering excellent value without compromise.

• Quality Assurance
  Each unit is individually tested by the supplier prior to delivery. A quality inspection seal is affixed to confirm successful testing and calibration. Users are advised not to remove this seal.

The OCAL Electronic Collimator 4.0 is ideal for Newtonian, SC, CDK, and RC telescopes, offering a powerful combination of accuracy, durability, and ease of use. Suitable for both amateur and professional applications, it provides a modern, software-enhanced solution for achieving perfect optical alignment.

Technical Specifications

OCAL Collimators Features Comparison

In the Box

• OCAL Colliamtor
• 1.25" Nosepiece
• USB-A to USB-C Adapter
• USB-A to USB-C Cable
• Adapter

Manual & Warranty

 OCAL's warranty