The T-2 / M42 × 0.75 – 5 mm Extension Tube (PrimaLuceLab, SKU: PL3304205 ) increases the back-focus distance by exactly 5 mm in optical paths using a T-2 thread, making it easier to precisely adjust the distance between the camera and the corrector or flattener.

Key Features

• 5 mm optical length – precise back-focus adjustment
• threads: internal and external M42 × 0.75 (T-2 standard)
• lightweight, anodized aluminum - corrosion resistance and low weight

Set components

• spacer ring 5 mm M42 × 0.75 (T-2)

Technical parameters

• internal thread: M42 × 0.75
• external thread: M42 × 0.75
• optical length: 5 mm
• material: anodized aluminum
• EAN: 8059020773564

The PL3304205 ring helps achieve the nominal back-focus required by correctors and reducers, providing optimal image correction without additional connectors.