Baader M48 Extension Tube 10 mm This Baader extension adds 10 mm of optical length to an M48 threaded imaging train. It provides an M48 × 0.75 female telescope-side connection and an M48 × 0.75 male camera-side connection.
Manufacturer model: Baader M48 Extension Tube 10 mm · Specifications checked against manufacturer data on 2026-11-04
This Baader extension adds 10 mm of optical length to an M48 threaded imaging train. It provides an M48 × 0.75 female telescope-side connection and an M48 × 0.75 male camera-side connection.
The female thread is 3.5 mm deep and the male thread is 3 mm long. The manufacturer lists a 45 mm inner diameter and 53 mm outer diameter. The 10 mm extension is the added optical spacing, rather than the overall dimension including the male thread.
The aluminium extension provides a fixed spacing increment between compatible cameras, reducers, flatteners and other threaded accessories. Combine it with the model-specific adapter arrangement required by the optical corrector.
Baader manufacturer documentation
Exact extension SKU and nominal optical length checked against the manufacturer variant. Exact optical length takes priority over broad catalogue filter buckets. Thread engagement length is not added again to the optical spacing.
Data sheet
Specific References
Baader M48 Extension Tube 10 mm This Baader extension adds 10 mm of optical length to an M48 threaded imaging train. It provides an M48 × 0.75 female telescope-side connection and an M48 × 0.75 male camera-side connection.
Manufacturer model: Baader M48 Extension Tube 10 mm · Specifications checked against manufacturer data on 2026-11-04
