There are no electrical contacts in the extension tubes. Exposure has to be adjusted manually. Aperture control is not available if you use a lens which does not allow you to manually adjust the aperture (without an aperture ring).
Macro extension tube is wonderful substitution to expensive macro lenses. It maintains original optical while transform the lens into a macro lens.
This extension tube consists of 5 parts: 1. Camera Body Mount Adapter 2. Lens Mount Adapter 3. 9mm tube (Tube 1) 4. 16mm tube (Tube 2) 5. 30mm tube (Tube 3)
Compatible Digital Cameras: Canon 1d, 1ds, mark II, III, 5d, 5d Mark II, 50d, 40d, 30d, 20d, 10d, D60, D30, Digital Rebel t1i, Xs, Xsi, Xt, Xti. 1000D, 500d, 450d, 400d, 350d, 300d, Kiss I II, III
Compatibile with: CANON EOS EF DSLR & canon EOS EF SLR Life size image is guaranteed with this set up. See details specification at the table below. Specs are based on 50mm f1.4 lens.

Technical Details

Product Details

Package Dimensions
Width : 2.56 inch
Height : 2.56 inch
Length : 2.95 inch

Shipping Weight: 0 ounce (View shipping rates and policies)

ASIN : B01N4PRKDA