The macro bellows increase the distance between your lens and film to provide high-quality close-up images. Features: Macro bellows for manual focus cameras. Increase the distance between your lens and film to provide high-quality close-up images. Offer high reproduction ratios (up to 11X by themselves, up to 22X with bellows extenders for the PB-6). Include an accordion section that attaches between the lens and camera body, with a maximum extension of approximately 130mm. Best used with a tripod to allow smooth and consistent distance adjustment. Specifications: Material: Plastic & Aluminum Alloy Compatible Model: For Canon EOS mount film SLR / DSLR camera Item Size: 14 * 10.7 * 6.3cm / 5.5 * 4.2 * 2.5in Item Weight: 210g / 7.4oz Package Size: 15.3 * 7.6 * 11.2cm / 6.0 * 3.0 * 4.4in Package Weight: 262g / 9.2oz Package List: 1 * Macro Bellows Note: Autofocus and aperture control are not retained when the bellows are in use.