Plug And Play Extended Back Focus Tube For Telescopes And Cameras, Aluminum M54x0.75 Threaded Extension Spacer With Anodized Matte Finish, Precision Alignment To Increase Lens To Sensor Distance For Sharper Astrophotography
✔️ Anodized aluminum body, 3-50 mm range, precise back focus
This precision spacer is made from premium anodized aluminum with a matte finish, designed to lengthen the distance between your lens and camera sensor. It’s ideal for telescope photography and guide scopes, helping you achieve sharper, cleaner images by fine-tuning back focus distance.
✅ Anodized aluminum body with matte finish for durability and glare reduction
✅ Increases lens-to-sensor distance for accurate focusing
✅ Available in sizes from 3 mm to 50 mm to fit back-focus requirements
✅ M54x0.75 thread for straightforward integration with adapters
✅ Works with focusers, field flatteners, or filter wheels to reduce vignetting
💡 What is a back focus extension tube used for in astrophotography?
Back focus extension tubes are handy accessories that fine-tune the distance between the camera sensor and the lens to achieve precise focus and minimize vignetting in long exposures.
- back focus extension tube for precise lens-to-sensor spacing
- handy for astrophotography with telescopes and cameras
- compatible with focusers, flatteners, and filter wheels
- helps minimize vignetting and improve edge-to-edge sharpness