The JJC AET-CS2 automatic extension tube is specially designed for use with Canon EF/EF-S cameras. It allows the lens to focus closer than the normally set minimum focusing distance, resulting in magnification of the subject.

The set includes two tubes of different lengths, 12mm and 25mm, which can be used individually or in combination for the desired magnification. The built-in gold-plated contacts maintain full autofocus and exposure functionality, while the tubes do not contain optical elements, ensuring image quality.

The metal bayonet provides reliable use and includes a body cap and rear lens cap for protection when not in use. It also comes with a storage pouch with a drawstring and carabiner for easier transport.

Notes:

• The automatic extension tube restricts the focusing range to close distances.
• Using two or more tubes with a wide-angle lens is not recommended.
• Image magnification may cause shaking; using a tripod and remote control is advised.
• For better sharpness, adjust to a low aperture value.