OGMA Off-Axis Guider (OAG) for Astrophotography – Ultra-Slim, Large Prism, Multiple Thread Adapters. Ideal for Deep-Sky Imaging & Auto-Guiding (Standard Size)

Capture Sharper Deep-Sky Images with the OGMA OAG Off-Axis Guider This OAG is a professional-grade off-axis guider designed for astrophotographers seeking zero flexure, lightweight guiding, and ultra-low profile integration with your telescope and camera setup. Unlike bulky guide scopes, this OAG uses a precision-engineered prism to divert starlight to your guide camera, eliminating differential flexure errors during long-exposure astrophotography. Key Features & Benefits: ✅ Ultra-Low Profile Design: Saves backfocus (only 17.5mm) for compatibility with field flatteners, reducers, and DSLR/mirrorless cameras. ✅ Prism Adjustments: Easily align the prism to avoid shadowing the main camera sensor. ✅ Zero Flexure Guarantee: CNC-machined aluminum construction ensures rigidity for pixel-perfect guiding accuracy. ✅ Broad Compatibility: Works with ZWO ASI, QHY, and other guide cameras (1.25” nosepiece included).

• Important Compatibility Notice: Requires either a compatible filter wheel or a special filter holder (such as OGMA's UFD54) on the camera side to ensure proper attachment and back focus. Otherwise, your primary imaging camera must have a front flange with six M2.5 mounting holes for direct connection using the included adapter
• Ultra-Low Profile Design: Saves backfocus with only 17.5mm thickness for compatibility with field flatteners, reducers, and DSLR or mirrorless cameras in your astrophotography setup
• Zero Flexure Guarantee: CNC-machined aluminum construction ensures rigidity for pixel-accurate guiding accuracy during long-exposure astrophotography sessions
• Prism Adjustments: Easily align the prism to avoid shadowing the main camera sensor, ensuring optimal light capture for your imaging system
• Broad Compatibility: Works with ZWO ASI, QHY, and other guide cameras with 1.25 inch nosepiece included for versatile mounting options