This ring is the reverse of a lens converter.
Retains the original focal length format
The lens gains an aperture stop.
Autofocus with phase detection (AFS-S)
Works in conjunction with Canon lenses and Sony cameras Refer to the list of complete description for compatibilities.
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Adapter Ring: focal reducer
Lens Construction: 4 groups 4 lenses
The ring also comes with a screw thread for tripods. The ring can be easily attached to a tripod.
This ring is the reverse of a focal doubler.
Retains the format of the original focal length (for example, a 50mm remains a 50mm). No conversion factor, or focal equivalence.
The lens gains a stop. A lens with aperture f/1.8 becomes a f/1.4 and, so on. For the brighter lens in the list, a lens at F5.6 becomes F4.
Autofocus with preserved phase detection. It may, however, take a little longer than in a classical situation.
Works in conjunction with Canon optics and Sony housings. Refer to the list of complete description for compatibilities.
Operating mode with the pair of Sony / Canon lenses Canon
List of supported cameras:
A7 series: A7SII, A7RII, A7II, A7S, A7R, A7
A6 series: A6300, A6000
PXW-FS7, NEX-FS700, NEX-FS100
NEX-6, NEX-5, NEX-5, NEX-5, NEX-C3, NEX-3, NEX-EA50, NEX-VG900, NEX-VG30, NEX-VG20
List of supported lenses:
Canon EF 8-15mm f / 4L USM Fisheye
Canon EF 11-24mm f / 4L USM
Canon EF 16-35mm f / 2.8L USM
Canon EF 16-35mm f / 4L IS USM
Canon EF-S 17-55mm f / 2.8 IS USM
Canon EF-S 18-55mm f / 3.5-5.6 IS II
Canon EF 20-35mm f / 3.5-4.5 USM
Canon EF 24mm f / 1.4L USM
Canon EF 24-105mm f / 4L IS USM
Canon EF 28-80mm f / 3.5-5.6 II
Canon EF 40mm f / 2.8 STM *
Canon EF 50mm f / 1.2L USM
Canon EF 50mm f / 1.4 USM
Canon EF 50mm f / 1.8 STM
Canon EF 70-200mm f / 2.8L IS II USM
Canon EF 70-200mm f / 4L IS USM
Canon EF 70-200mm f / 4L USM
Canon EF 70-300mm f / 4-5.6L IS USM
Canon EF 85mm f / 1.2L II
Canon EF 100mm f / 2.8L Macro IS USM
Canon EF 100-400mm f / 4.5-5.6L IS USM
Canon EF 100-400mm f / 4.5-5.6L IS II USM
Canon EF 180mm f / 3.5L Macro USM
Canon EF 200mm f / 2.8L II USM
Canon EF 300mm f / 4L IS USM
Canon EF Extender 1.4x III
Canon EF Extender 2x II