Tested with the 6D and three lenses and approved

After I recently even had the opportunity to use the original Canon 2x Extender, I was very eager to learn, what is possible for half the purchase price. Expectations were normalized by some reviews and excellent technical comments on the original Canon extenders and a fundamental willingness to compromise available.

I could today - immediately after the arrival of the Kenko converter - make the same a few test shots with the following lenses:

1. Canon EF 100mm 2.8 L IS USM Macro - is the 200mm f / 5.6 Macro with great sharpness and brilliance
2. Canon EF 70-200mm 1: 2.8 L IS II USM - 400 mm f / 5.6 telephoto - that's pretty and has yet to be thoroughly tested
3. Sigma 85mm F1.4 EX DG HSM

The Kenko converter has the Necessary electronics to transmit the 6D the right start aperture, focal length and the lens corrected data. It's funny, when you see in the meta-data, such as a lens EF70-200mm delivers photos with 400mm focal length.

I'm not a product tester and can only assess the quasi I 'felt' image quality. I would - assessed as excellent - having regard to the fundamental, physical rules for such converter. I did not 'feel', the original Canon Converters have delivered better picture quality. The attached photos are taken out of your hands. The Sigma 85mm is at open aperture 1.4 a little soft and flattering - even with the converter and Aperture 2.8 - so here an example with visor. 4

The 400mm focal length of 70-200 are very impressive but somewhat unwieldy (even without the converter). Currently my combination with the 100mm Macro like it very much - the Minimum focusing distance is namely get - which is exciting! Basically, one must also come to terms with the loss of light from an exposure level challenges the capabilities of the autofocus. Aperture 5.6 instead of 2.8 is also reflected in the viewfinder noticeable (I use the time allotted for manual focus adjustment disc, the light intensities of 2.8 and better loved).

So the pictures are - from left to right - made 85mm with 1 Sigma, Canon EF100mm Macro 2, 3. Canon 70-200mm at 270mm effective focal length