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Three black metal extension tubes 12 20 36mm with caps and cleaning kit

Kenko

Kenko Auto Extension Tube Set DG 12 20 36mm Canon EOS with Cleaning Kit

SKU CH-SFJ7-EF95X

A set of 12mm, 20mm and 36mm extension tubes that mount between Canon EOS body and lens to enable closer focusing for macro work, plus a cleaning kit

  • TypeLenses Accessories
  • Enables closer focusing with 12mm, 20mm and 36mm tubes
  • Tubes work individually or combined for flexible magnification
  • Retains auto focus capability with Canon EF and EFS lenses
  • Adds macro capability without optical elements
  • Includes cleaning kit with cloth, fluid, 25 tissues, 5 swabs and blower brush

Extension Tubes for Canon EOS

The Kenko Auto Extension Tube Set DG provides three tubes of 12mm, 20mm and 36mm that mount between a Canon EOS camera body and EF or EF-S lens. They enable closer focusing distances for macro photography while retaining autofocus communication. The tubes contain no optical elements so image quality depends entirely on the attached lens. A General Brand cleaning kit with cloth, fluid, swabs, tissues and a blower brush is included.

Build Integration

Each tube connects via the standard Canon EF mount and can be used alone or stacked in any combination to vary magnification. No external power or additional adapters are required beyond the camera and lens. Front and rear caps protect the contacts when tubes are not in use. The set frees the photographer from purchasing a dedicated macro lens for occasional close-up work.

Sustained Use Behaviour

Because the tubes add physical extension without optics, light transmission decreases as total length increases, requiring longer exposures or higher ISO values during extended sessions. Autofocus performance may slow at very close distances, especially in low light. The metal mounts maintain secure alignment over repeated attachment cycles. The included cleaning supplies help keep lens elements clear during prolonged field use.

Highlights

  • Enables closer focusing with 12mm, 20mm and 36mm tubes
  • Tubes work individually or combined for flexible magnification
  • Retains auto focus capability with Canon EF and EFS lenses
  • Adds macro capability without optical elements
  • Includes cleaning kit with cloth, fluid, 25 tissues, 5 swabs and blower brush

Specifications

TypeLenses Accessories

Questions about this item

How much closer can the 12mm, 20mm and 36mm tubes let my Canon EF lens focus?

Each tube increases the distance between lens and sensor; the longer the tube, the closer the focus. Use them singly or stacked to reach the magnification you need.

Will the extension tubes affect exposure metering or autofocus speed during long macro sessions?

The tubes retain full electronic contacts so metering and autofocus remain active. They contain no glass, so light transmission is unchanged.

Which Canon lenses can I attach directly to these tubes without an extra adapter?

The set mounts natively to Canon EF and EF-S lenses. No additional adapter is required for those mounts.

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