Used Nikon PK-13 27.5 Extension Tube Olympus EM10 Mark IV As part of the Canon

As part of the Canon L-series

robust design makes them ideal for birdwatching

This frame stands in portrait mode and has an off-centre aperture in which to display the photograph

Large 50mm objective lenses for superior low-light performance

The optical construction includes several special lens elements

Used Nikon PK-13 27.5 Extension Tube Olympus EM10 Mark IV As part of the CanonThe Nikon PK 13 27. 5mm extension tube enables macro photography by increasing the working distance between your lens and subject. This accessory maintains full autofocus and metering compatibility with compatible Nikon F mount lenses, making it ideal for close up work without investing in dedicated macro optics. The extension tube's optical glass elements preserve image quality whilst allowing you to achieve magnification ratios suitable for detailed