Lumicon Giant EasyGuider (Pre-owned)

NOTICE: This is a pre-owned product. This item may not come with its original packaging, and may not have all of the original accessories. Camera Concepts thoroughly tests, and ensures the quality of all pre-owned products we advertise. See below for a more detailed description of the product.

This pre-owned Lumicon Giant EasyGuider is a robust, high-quality off-axis guiding system designed for large-aperture telescopes, delivering improved tracking accuracy for long-exposure astrophotography. It features a built-in focal reducer, adjustable pick-off prism, and solid mechanical construction, making it a versatile tool for capturing sharper, more precisely guided images. Light cosmetic wear is present, but performance remains reliable—an excellent addition for astrophotographers seeking stable, well-engineered guiding support.

The Lumicon Giant Easy Guider (GEG) is an 80mm multi-coated off-axis guider with a focal reducer for large SCTs. It connects by threading a base ring onto the telescope, inserting the unit, and tightening the thumbscrews. It allows for off-axis guiding while reducing the focal ratio (e.g., to f/5.5 or f/4) using a reducer lens placed before or after the prism. 

Key Setup and Operation Instructions:

• Installation:Thread the attachment ring onto the back of the telescope (11" or 14" SCTs), insert the Giant Easy-Guider, and tighten the three brass thumbscrews.
• Imaging Train:Attach the camera using a T-ring. The unit acts as a 2" extension tube. For faster focal ratios (f/4), an optional 2" extension tube can be added.
• Reducer Placement:The included 80mm reducer lens can be inserted into the front (facing the scope) or rear (facing the camera) positions of the guider to achieve different focal reduction factors.
• Focusing:Achieve focus on a distant daytime object. Focus the main camera first, then adjust the pick-off prism/guide camera position until the guide star is in focus.
• Guiding:The pick-off prism brings a guide star to a side port. If guide stars are not easily found, adjust the position of the guide camera in its holder and rotate the unit.
• Shimming:If needed to ensure guide stars are visible, place small pieces of tape as shims on either side of the front edge of the prism holder. 

Operational Modes:

• f/10 (No Reduction):Remove the reducer lens. No extension tube required.
• f/6.5 - f/7.5:Insert the reducer lens in the "rear" position.
• f/5.5 - f/4:Use the reducer in the front position, optionally with a 2" extension tube for faster focal ratio