POWERED BY SIOCORE Brennweitenreduzierer 'Focal Reducer' (increases Lens Aperture) Canon FD bayonet APS lens to Sony E-mount cameras, such as Sony NEX and newer Sony Alpha (Electronics)
I want to use this adapter to my NEX7, but the promised "additional" aperture I could not tell. the balance of the optics was me anyway not so important, so I now use a normal adapter - no lens - and my Canon FD lenses are equivalent to 1.5 time
