Pegasus Indigo optical splitter

Pegasus Indigo OAG (Off-Axis Guider)

Visit Pegasus Indigo OAG (Off-Axis Guider) is a high-performance off-axis guiding tool designed for demanding astrophotographers. With its ultra-thin design and rugged aeronautical aluminum construction, it offers a compact, reliable solution to eliminate the differential bending problems often encountered with separate guiding scopes. Here's a detailed description of this innovative equipment.

Compact design and high-quality materials

The Indigo OAG is machined from 6061 aluminum, used in the aerospace industry, guaranteeing lightness and strength. Its overall thickness is just 10 mm (14 mm with adapters), making it one of the thinnest optical splitters on the market. This design allows easy integration into complex configurations, while minimizing optical draft.

Adjustable prism and wide field of view

• 12 × 8 mm prism This multi-layer, anti-glare prism offers excellent light transmission, guaranteeing bright, round stars for the guidance camera.
• Adjustable height The prism can be moved to optimize the illumination of the guiding sensor, thus avoiding vignetting on large imaging sensors.

Universal compatibility

The Indigo OAG is designed to adapt to a wide range of equipment thanks to its multiple connection options:

• Telescope side Thread M54x0.75 or M48x0.75.
• Camera side Thread M48x0.75 or M54x0.75.
• Guidance camera Standard 1.25" connection.
• Through holes (M2/M3): Allow direct attachment to modern CMOS cameras and third-party filter wheels.

Outstanding optical performance

• Free opening 53.5 mm, guaranteeing maximum light transmission for large-format imaging sensors.
• Minimum optical path 14 mm (10 mm for the OAG + 4 mm for the adapter), ideal for configurations requiring low backfocus.
• Compatible with Indigo filter wheel For a total combined optical path of just 33 mm.

Advanced options

A premium version (PEG-INDIGO-OAGPREM) includes an integrated helical focuser, enabling precise focus adjustment for guiding cameras. This focuser can also be added at a later date as an upgrade.

Practical applications

• Long exposure astrophotography Ideal for capturing deep-sky objects with precise tracking.
• Heavy-duty configurations Its robust construction easily supports complex imaging equipment.
• Reducing differential bending By using the same optical path as the main camera, it eliminates errors associated with mechanical offsets.

Box contents

• Indigo OAG optical divider.
• M54F threaded adapter (telescope side).
• M48F threaded adapter (camera side).
• Screws and Allen keys for adjustment.
• Instruction manual.

Remarkable features

• Ultra-thin, lightweight design.
• Adjustable prism to prevent vignetting.
• Extended compatibility with CMOS cameras and filter wheels.
• Solid construction to support heavy equipment.
• A helical focuser can be added for precise adjustment.

In short, the Pegasus Indigo OAG is a highly optimized solution for astrophotographers seeking to maximize tracking accuracy while minimizing space requirements and mechanical stress.