Background: It’s known that the performance of Sony SEL 55-210mm is average. I have been considering the Canon FD 70-200mm F/4 for a very long time, but without Image Stabilisation, I am skeptical about the usefulness of a legacy zoom lens in an APS-C camera for regular hand-held shots. The Metabones adapter at its $400 price did not make any sense for a new APS-C migrant not already possessing a Canon EF Lens. Sooooo, pressed the “pause button” and waited and waited. Renewed Interest: Recently came to know about “COMMLITE Auto Focus EF-NEX adapter” which supports the built-in IS available in Canon’s IS lenses. User reviews on Amazon.com are mostly positive. My interest in this adapter is towards using Canon lens's Image Stabilisation and less on autofocus. Getting EXIF info is an added bonus. This has reignited my interest in a Good Zoom Lens. I am thinking about getting the “Canon EF 70-300mm f/4-5.6 IS USM Lens” (not the L-series). There are plenty of positive reviews on this lens. A near mint lens is available at a local shop for about $ 425 (a brand new SEL 55210 sells for about $ 300). This Canon lens also seems to be better in IQ than Sony SEL 70-200mm F4 G OSS Lens (about $ 1600 here); specswise, the Canon is also smaller and lighter than the Sony G lens. Below is a picture of this Adapter on a Sony A7 (photo courtesy original owner) for reference. Help Needed: Adapter: Has any member tried the above adapter ? Or similar adapters ?? What’s your views about Image Stabilisation and Manual Focusing of EF lenses on the E-Mount Cams ? Lens: What’s your views on the above Canon lens ? Alternate Lenses: Recommendations on any other Canon EF (or 3rd party EF) Zoom lenses with IS ? Even a zoom reach of 200mm to 210mm is adequate for me. EF-S Lenses: Do they vignette on the NEX (due to the 1.6X Crop factor) ? I am eagerly waiting for valuable inputs from members. Thanks in advance.