Reviews and Problems with Canon EF12 II Extension Tube
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Worthy of Canon name!
MERLIN, B&H Photo
2 weeks ago
Excerpt: I wanted to do some macro photography without buying a new lens. Good solid build and fastens to my camera and lens with a snug firm fit. Not to tight and definitely not loose. Work great with my 70-300 Tamron no wiggle at all and well with my 17-50 Tamron but at the upper end of the zoom range. On my 10-20mm the focus distance is just to close to the glass to make it worth while and at the 10mm the focus is inside the glass.
Excerpt: the canon extension tube really gets you so much closer to smaller subjects without having to buy an expensive macro lens. I'm using it with my canon 85mm 1.8 lens and the auto focus works well. There is some vignetting but it could be due to the small depth of field. In the reviews I read it was useable with most lens but when I tried to use it on my canon EF 35mm 1.4 I could not get it to focus at all.
Excerpt: I use this with a Canon 50 mm 1.4 lens and it is great. I have a 100 mm Canon Macro but it is big and heavy. This fits easily into my vacation camera bag that holds only the 6D, 24-105 mm lens, a flash, small tripod, the 50mm and now the Extension Tube.
Excerpt: I had another brand of extention tube and recently purchased the Sigma 50mm 1.4 Art lens. The other brand of extention tube did not work because the sigma (as well as other lenses) is rear focus which hit some of the structure of the tube. The Canon tube works perfect and now I do not have to carry a macro lense while traveling.
Excerpt: This extension tube will allow standard lenses to be used in macro photography without degrading lens quality. The EF12 is the shortest and will give you the least extra CU focusing distance which can be a great help with longer lenses. I wanted to use it with my 16-35MM set at 16MM, but the furthest focusing distance was about 2" from the subject which is too close for my project. That has no bearing on the excellent quality and ease of use.