Canon EF 12 II Extension Tube For EOS Digital Cameras

super very happy fonctionne très bien good job

機能的にも問題なく、満足に使えています

My grandfather once told me that all cheeses were made in the same factory so it doesn't matter which cheddar, for example, you purchase. This isn't literally true, of course, but the point he was trying to make is that something that costs more isn't always better than a cheaper version of the same thing. With his voice in mind I purchased both the  Polaroid Canon EOS Macro Extension Tube Set For Extreme Close Up Photography  AND the  Canon EF 12 II Extension Tube For EOS Digital Cameras  and put them to the test to see which was the greater value. Here are my findings:1. I'm happy that I bought both.2. They decidedly do not represent different price points of the same thing. The fact that I originally thought they did only reflects my growing, yet still weak, expertise in the paraphernalia of macro photography.3. The Polaroid tube is made up of 7mm, 14mm, and 28mm lengths that can be used individually or in any combination.4. The Polaroid tube is just that...a tube, and supports no electronic connection between camera body and lens. In my book this is absolutely fine as long as what you are photographing is not moving and you have the time to make the necessary positional, exposure, and lighting corrections. Photographing jewelry in a static and controlled environment would be a good example.5. The Canon tube, more like a thick ring actually (The  Canon EF 25 II Extension Tube for EOS Digital Cameras  is a bit more tube-like.) is of a single fixed 12mm length and supports complete connectivity between camera and lens so that exposure and focusing are done as seamlessly with the EF 12 as without. This is a huge benefit if what you are trying to photograph is in a changing environment or moving. Macro photos of insects comes to mind. Yes, I actually did this while building lesson plans for my Biology class.So, while my experiment to determine relative value was a bit misguided, I did end up with two devices I use frequently and would be unhappy to part with. As I said, they are not 'of a kind' and have separate yet strong appeal. If the Canon tube is a cheese it would be a fine Brillat-Savarin while the Polaroid isn't a cheese at all, but a really nice set of pliers. Polaroid Canon EOS Macro Extension Tube Set For Extreme Close Up PhotographyCanon EF 12 II Extension Tube For EOS Digital CamerasCanon EF 25 II Extension Tube for EOS Digital Cameras

Use it often, again Canon quality.

Pros:You can get much closerWorks with both EF-S and EF lensesAuto focus still functions perfectlyTakes up very little room in your camera bagItem looks about 3 times as large in photo using 17-40 Canon F/4 LensCons:A little tight to put on and take off of lensCan no longer focus very far away let alone infinityReview:I purchased this Extension tube so I could take better Macro photos without having to purchase an expensive Macro lens. I've got so many lenses already.I installed the tube between my Canon Rebel XTi and Canon 17-40 F/4 L lens and bang!!! Instant macro lens.A photo I had taken without the tube of a penny using the Canon 17-40 zoomed to 40mm gave a so so image. Putting the tube on allowed me to focus so close the penny filled almost the entire view finder. Looking at the penny image taken with the tube you can see little details I never noticed before like each and ever step and little details like the little FG on the lower right corner on the back of the penny.Verdict:I highly recommend it's worth every penny!!!