Canon Extension Tube EF 25 II

The Canon Extension Tube EF 25 II is a macro extension accessory designed for use with Canon EF and EF-S mount lenses on Canon EOS DSLR and mirrorless camera bodies with an EF adapter. It inserts between the camera body and lens to increase the distance between the lens and the image sensor by 25mm, allowing the attached lens to focus closer than its native minimum focusing distance and achieve greater magnification for close-up and macro photography. Electronic contacts on both the lens and camera-facing mounts maintain full communication between the lens and body, preserving autofocus operation, image stabilization, and EXIF data transmission for compatible lens and body combinations, distinguishing it from purely mechanical extension tubes that sacrifice electronic functionality. The increased lens-to-sensor distance results in a reduction of light reaching the sensor, requiring exposure compensation to maintain correct exposure.

– 25mm extension for increased close focusing capability
– Maintains full electronic communication for autofocus and image stabilization
– Preserves EXIF data transmission
– Compatible with Canon EF and EF-S mount lenses
– Inserts between camera body and lens
– Allows greater magnification than native lens minimum focus distance
– Exposure compensation required due to increased extension
– Practical macro accessory for Canon EF and EF-S mount systems