Is anyone using the Metabones Speed Booster with the Nikon AF 105mm f2.8 G Micro lens?? If so, do you like the combo? Any issues focusing? do you have any photos to share? The math means this lens will now act like a 112mm f2.0 even though you have to use the adapter to open aperture. I just picked up a Speed Booster and will be using it soon and posting. Thanks for any advice and samples. Thanks!