Canon ETEF12II Extension Tube

The technical details behind this extension tube
Take photographs with shorter distance using the Canon ETEF12II Extension Tube. This extension tube features O-ring seals, making it resistant against water and dust. It also allows users to shoot with a short focusing distance while retaining the metering and AF functions. It also has white index mark for digital SLR EF-S lenses and red mark for photo lenses. This extension tube is compatible with digital EF-S lenses, EF, and TS-E lenses.
Key Features

O-ring seals
Retains all metering and AF functions with most CANON EF lenses
Shortens focusing distance of the lens
Compatible with digital EF-S lenses, as well as EF and TS-E lenses
Top three reasons we think you will love this extension tube

Suitable for use in heavy rain
Ideal for close up photography
Great fit