SVBONY M42×0.75 (T2) Extension Tube Kit is a modular spacing solution for astrophotography imaging trains. Supplied with 5 mm, 10 mm, 15 mm, and 20 mm extension rings, it allows precise back-focus adjustment when using cameras, reducers, and field flatteners.
Key Features
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Precision M42×0.75 (T2) threading
Each extension tube features male and female M42×0.75 threads, providing accurate and secure connections between compatible astrophotography accessories. -
T2 system compatibility
Designed for standard T2 imaging systems, helping resolve common spacing and focusing issues in camera-based setups. -
Accurate image scale control
Enables precise spacing for reducers and field flatteners, helping achieve correct image scale and sharp focus. -
Flexible modular spacing
Extension tubes can be used individually or combined to achieve the exact spacing required for your optical configuration. -
All-metal anodised construction
Fully metal design with anodised aluminium finish ensures durability, rigidity, and resistance to deformation during long-term use.
Extension Tube Kit Contents
The SVBONY M42 extension kit includes four individual tubes:
- 5 mm extension tube
- 10 mm extension tube
- 15 mm extension tube
- 20 mm extension tube
Modular Combination Design
By combining different tube lengths, the required spacing can be achieved with high precision. This flexibility makes the kit ideal for fine-tuning back focus in astrophotography imaging trains.
M42×0.75 Thread Compatibility
The male and female M42×0.75 threads allow direct connection to T2 camera adapters, filter holders, and other M42-threaded astrophotography accessories.
Durable All-Metal Design
The anodised aluminium construction provides strength and stability while remaining lightweight, ensuring reliable performance without adding unnecessary load to the imaging train.
