The T-2 / M42 × 0.75 – 0.5 mm spacer (PrimaLuceLab, SKU: PL3304200 ) enables an ultra-precise increase of the back-focus distance by just 0.5 mm in optical paths using the T-2 thread.

Key Features

• optical length 0.5 mm – back-focus micro-adjustment
• internal and external threads M42 × 0.75 (T-2 standard)
• anodized aluminum ring - lightweight and corrosion resistant

Set components

• spacer ring 0.5 mm M42 × 0.75 (T-2)

Technical parameters

• internal thread: M42 × 0.75
• external thread: M42 × 0.75
• optical length: 0.5 mm
• material: anodized aluminum
• EAN: 8059020773526

The PL3304200 ring allows you to compensate for the missing half a millimeter of back-focus, which is crucial for achieving full image correction when working with correctors or focal reducers.