The Vello Manual Extensions Tube Set for Canon EF/EF-S-Mount allows your lens to focus closer than its normal minimum focusing distance. By placing distance between your camera body and lens, the focusing distance is shortened and magnification is increased. Extension tubes enable macro performance for lenses not otherwise able to focus that close, and are also suited for close-up portraiture. The Manual Extension Tube Set for Canon EF/EF-S-mount contains three extension tubes of 7mm, 14mm, and 28mm lengths. They pair up with the required camera and lens adapter mounts, which add an additional 15mm to the actual extension tube lengths. The extension tubes can be used individually or together in seven distinct combinations to create the desired magnification. For closer focusing use the larger extension tube or stack the tubes together. Extension tubes have no optical elements so do not degrade the quality of your lenses.

These tubes are manual tubes and do not communicate electronic functions, such as autofocus or auto exposure control, between your camera body and mounted lens; both manual focusing and manual exposure control must be used. Since Canon EF/EF-S lenses do not feature a built-in aperture ring, exposure can only be controlled by changing the camera's shutter speed, while maintaining the native preset aperture of the lens. With Canon EF/EF-S lenses, this will be the largest f/stop. Due to the screw-in design of the manual extension tubes, the lens may not sit directly upright but will, however, function normally. Do not to over-tighten screw-in tubes to ensure easy removal of each tube. Additionally, when using the extension tubes, you will lose the ability to focus to infinity.

Shortens Minimum Focus Distance of Lens    Provides Macro Capability    Includes 7mm, 14mm, and 28mm Tubes    Can be Used Individually or Combined    Metal Mount    Lightweight Design    For Canon EF/EF-S-Mount Lenses

Shortens minimum focusing distance of lens for macro photography.

Extension tubes of 7mm, 14mm, and 28mm lengths can be used individually or in any combination of the three for greater magnification. The required camera and lens adapter mounts add an additional 15mm to the actual extension tube lengths.

Lightweight design with metal mounts for durability and longevity.

Fits Canon EOS DSLR cameras and all EF/EF-S-mount lenses.

Related Questions and Answers

Q: 1. How I do to set up the aperture?

A: I have not used these yet, but here is the deal.1) You have to have a lens that has a ring to twist (like the zoom ring to zoom in and out, or the focus ring) that allows the aperture opening to be set manually, larger or smaller. The less expensive kit lenses that come with a camera will usually not have this.The more expensive extension tube sets have electrical connectors that make the connection between the camera body and the lens to drive the aperture motor in the lens. Because there is no electrical connection you will also have to focus manually, no auto focus.2) You then have to use the camera in Manual Mode or Aperture Priority Mode. In Manual Mode you use the built-in light meter of the camera to determine if you have the correct exposure (aperture opening and shutter speed). When looking thru the view finder look for a + sign, a - sign, and hash marks in-between. In the middle of the hash marks is a zero. Adjust the aperture ring and shutter speed so the light meter reads close to zero.My first SLR film camera back in the 1970's this is how it was done, everything was manual, use the light meter to set the aperture and shutter, focus, then take the picture.In Aperture Mode the the shutter speed is set automatically for you by the camera. Just set the aperture and focus.This is why it is called a MANUAL Extension Tube Set. Everything has to be set manually because there is no electrical connection between the camera body and the lens. I bought the set to experiment with and decide if I wanted to spend more money for a set where the auto focus and auto aperture would work.

Q: 2. Besides the focal lengths being a little different and this coming with a bag, what are the other differences between this and the Vello EXT-CD ? E.G. Are tubes of the CD2 made of plastic?

A: There really isn't much difference except cosmetics and build quality. The CD2 is made of metal.

Q: 3. Where is Auto Extension Tube Set made?

A: The Vello Auto Extension Tube Set for Canon EOS is manufactured in China.

Q: 4. Are the individual tubes stackable?

A: Yes they are and in any combination you want.

Q: 5. What does F Mount mean?

A: F mount is the same bayonet mount Nikon has used since the first F model film cameras with interchangeable lens. It is a a quarter turn to lock in place.

Q: 6. Does the Vello auto extension tube set allow EF-S lenses to maintain their auto focus capabilities? I have read that some extension tube sets loose this capability when coupled to EF-S lenses.

A: The Vello Auto Extension Tube Set for Canon EOS allows full autofocus and exposure compatibility with EF-S lenses.

Q: 7. Hey there, does this come with lens caps for itself?

A: Yes it comes with front and rear protective caps.

Q: 8. What are the thread sizes on the extension tubes?

A: Unfortunately, the manufacturer does not indicate the thread size of the tubes included in the Vello Manual Extension Tube Set for Nikon F-Mount.

Q: 9. Will this work with a flash?

A: A standard hot shoe flash will be somewhat ineffective when using extension tubes. I advise you to use a ring light instead, which are designed for use with macro photography, such as the Stellar Lighting Systems STL-80R: http://bhpho.to/1jMiGMe

Q: 10. It looks like the 7mm tube is used in conjunction with two other pieces. Does using the 7mm ring mean the lens will be displaced 7mm from its normal position? Or is there some overhead from the other components?

A: Well, I purchased a set, so I can answer my own question. The camera mount tube and the lens mount tube are always used, and they move the lens out by 16mm. Any combination of the other three rings can be inserted in between them to increase the displacement. The customer should be able to learn this 16mm number from the description online. It's not even in the manual. I had to pull out calipers and measure it myself. no rings: lens is displaced 16 mm7mm: 23 mm displacement14mm: 30 mm displacement28mm: 44 mm displacement