Canon Extension Tube EF12
The original Canon Extension Tube EF12 (Mark I) is a 12mm hollow spacer mounted between an EOS camera body and EF/EF-S lens to enable close-up/macro photography without optical quality loss. It features electronic contacts to maintain autofocus and aperture control. It reduces minimum focusing distance, ideal for shorter focal lengths.
Key Features & Characteristics:
Purpose: Increases lens magnification by moving the lens further from the sensor.
Optics: Contains no glass elements, preventing image degradation.
Compatibility: Designed for Canon EF and EF-S mount lenses.
Functionality: Retains electronic communication, allowing aperture control and autofocus (though manual focus is often preferred in macro).
Limitation: It is not compatible with certain specialized lenses like the MP-E 65mm f/2.8, 14mm f/2.8L, or 15mm f/2.8 fisheye.
Stacking: can be stacked with other tubes (like the EF25) for greater magnification
The tube is in excellent cosmetic condition, please see photos provided.
Tested and fully working.
Any questions, please ask.
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1595
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