I'm looking to replace my current 2x teleconverter with a 1.4x - 2x is really more than I need, and the light loss is bad enough that autofocus can be tricky.
What I want is a general purpose converter, not matched to any particular lens or focal length, with support for AI lenses and Nikon's original AF system with motor in the camera body as well as AF-S - not worried about AF-P for the moment.
The one that keeps coming up on ebay is the Kenko Teleplus Pro 300 DG 1.4X N-AFD, which looks OK but I can't find a detailed review. Any recommendations or better alternatives?