APRANET T2 Extension Tube Set (5mm, 10mm, 20mm) for M42x0.75 Thread

This T2 extension tube set provides precise back focus adjustment and optical spacing for astrophotography and macro photography. The set includes three anodized aluminum tubes (5mm, 10mm, 20mm) with M42x0.75 T2 threads, allowing flexible combinations up to 35mm. The matte black internal finish minimizes reflections, ensuring optimal image contrast. Ideal for T2-threaded cameras, telescopes, and accessories.

Advantages

Precision-machined from anodized aluminum, these tubes offer corrosion resistance and durability. The modular design enables fine-tuning of optical path length, critical for achieving sharp focus in imaging setups. The anti-reflection internal coating reduces stray light, enhancing overall image quality. Compact and lightweight, they are easy to integrate into existing optical systems.

Suitable for

• Astrophotography with T2-threaded cameras and telescopes
• Macro photography requiring precise extension control
• Optical setups needing back focus adjustment
• Users of T2 (M42x0.75) standard accessories

Key specifications

• Mount standard: T2 (M42x0.75)
• Included tube lengths: 5mm, 10mm, 20mm
• Material: Anodized aluminum
• Colour: Black
• Input thread: T2 male (M42x0.75)
• Output thread: T2 female (M42x0.75)
• Internal finish: Matte black (anti-reflection)
• Maximum combined length: 35mm
• Minimum combined length: 5mm
• Outer diameter (approx.): 44mm
• Inner diameter (approx.): 38mm
• Thread pitch: 0.75mm
• Corrosion resistance: Yes (anodized finish)

Recommendations

For optimal performance, ensure all mating threads are clean and free of debris. Combine tubes as needed to achieve the desired back focus distance. Pair with a T2 adapter for your specific camera mount. Store in a protective case to prevent damage to threads.