Commlite TTL Macro Extension Tube Ring for Canon

This AF Extension Tube Set (Plastic Version) can perfectly transform your lens into a Macro Lens for great Macro shooting. It drives the lens by film or digital sensor and does not affect aperture and image quality.
Meanwhile, it is combined with 3 pieces of different tubes (length: 13mm, 21mm, 31mm) which can either be used separately or in any combinations (totally 7 different combinations) to satisfy your different magnification requirement. Furthermore, the tube is electronic one that can achieve functions of auto-focus as well as TTL auto exposure by working with all EF and EF-S mount Canon lens.

Features:
Upgraded circuitry to work better with digital SLR's cameras and SLR lenses.
Superior lock pin which can tighten the tube joint.
Perfect for macro shooting.
High quality and compact.

Specifications:
Color: Black
Macro tube size: 6.2 x 8cm / 2.4 x 3.1in (D x H)
Macro tube weight: 117g / 4.1oz
Package size: 13 x 7 x 7cm / 5.1 x 2.8 x 2.8in
Package weight: 155g / 5.5oz

Includes:
1 x plastic Macro Extension Tube Set
1 x Bag
1 x User manual