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Xit XTETC Auto Focus Macro Extension Tube Set for Canon SLR Cameras (Black)
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- Includes 3 Tubes
- You Pick Your Magnification
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|Sold By||Amazon.com||Amazon.com||COCOMALL||Kellards||iphoto digit||Mcoplus Digital|
|Item Dimensions||2.62 x 3.25 x 2.5 in||6 x 6 x 6 in||3.15 x 2.95 x 4.53 in||—||—||—|
|Item Weight||0.58 lb||3.8 ounces||0.68 lb||0.55 lb||0.66 lb||1 lb|
The Xit Pro Series auto-focus macro extension tube set is specifically designed for Canon DSLR and SLR cameras. It includes 3 tubes which can be used individually, or in combination to achieve the desired magnification. It is designed with all the proper circuitry and mechanical coupling to maintain auto-focus and TTL exposure with most Canon mount lenses. Perfect for flowers, insects, coins, stamps, and any close-up shots you want to take. It includes 13mm, 21mm & 31mm tubes. 2 year warranty
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Do you need this set over the $10 version?
- NO, if you are content with manual focus AND have a lens with an aperture ring.
- YES, if you need autofocus. Otherwise you'll have manual focus only.
- YES, if you have a lens without a designated aperture ring and need aperture control. Otherwise you'll be stuck at the smallest aperture (narrowest), typically f/22 - f/32!
Until recently, if you didn't have an aperture ring on your lens or needed autofocus, your only choice was to fork out a couple hundred dollars for extension tubes.
For a quarter of the price, these tubes are an extraordinary deal.
- For newer lenses like those with autofocus motors and no aperture ring, this set has the metal contacts necessary to send digital info back and forth from the lens to the camera, communicating focal distances, light metering and controlling mechanisms like autofocus motors and aperture settings on the lens. The cheaper sets do not have these metal contacts and leave DSLRs quite impotent.
- For older lenses, this set has a mechanical aperture control slider and screw drives to control autofocus (for camera bodies with built-in motors but motorless lenses).
The build quality is more than fair for the price. Although it has a cheap plastic hollowness to it, as opposed to the $10 aluminum sets, there is no flexing even with long lenses and no light leakage. All mechanisms are metal. The camera mounts are plastic, although they do have metal ring lens mounts (more for aesthetics than sturdiness). The thumb tabs are far easier to manipulate than the tiny knobs on other sets.
- With all three pieces, there is about a 2 stop loss of light.
- Sometimes they are a bit stiff and need to be thoroughly rotated until a "click" is heard.
- There may be a little bit of rotational play if you're not careful and rotate your lens too aggressively, you may dislodge the tubes.
Save yourself some money and go have fun with your macro hobby!
I tried this set of extension tubes out with my Sigma 70-200 f/2.8 which is a very big heavy lens. The extension tubes seem very solid and well built, there's absolutely no flex with my 70-200 on them with all 3 tubes. One note I want to make about using these with a zoom: set the zoom lens to infinity focus, then adjust the focus on the subject by adjusting the focal length on the zoom lens.
It looks like the inside of the tubes is made of metal with plastic on top of it; they're quite substantial feeling (and weigh more than I would expect if only the mounts were metal). These tubes have great features like a lens release button, and electronic contacts. I can't emphasize enough how much I like these tubes. At $55 they're a real steal and are just as nice as any of the more expensive ones out there.
There are many comments about the mounting being unusually difficult, but I have no difficulty if I take time.
Lens selection may be the cause of some user's difficulty in that the wider prime lenses will be very close to the subject ( within an inch and a half on my DX body w 35mm F 1.8G and the 8mm tube ) that can make setup difficult .
ANY lens will focus from a closer distance,but I suspect 80 - 100mm lens with a wide aperture is near the sweet spot - you can get good,close in shots without being physically too close to a subject . Better working distance.
If you insist on using autofocus be aware that single point works better; manual focus works best because the depth of field (sharpness front to back) is so short.Manual focus lets you select focus better than auto when shooting macro .Likewise, if your lens and camera body isn't parallel to the subject , your focus will trail off quickly due to the depth of field.
A tripod works best even on a fast lens because you will want to stop down to increase depth of field,and that will increase exposure time.
Macro is not a quick ,snapshot style process. It requires some setup thought . I like using it.