D. Grau
This is a great tool for Tamrons latest SP and compatible lenses. I recently found that my brand new 70-200mm G2 lens was out of calibration, even after sending out for service from Tamron. A simple in-camera adjustment wouldve affected all focal lengths, but with the Tap-In-Console I can calibrate focus at 4 different focal lengths for granular control. Of course, a good focal calibration tool is a good investment as well, but you could just as easily fine tune without it. Ive since learned that if you couple a Tamron teleconverter with a compatible lens, you should get a separate set of calibration focal lengths, in essence giving you calibration for your lens both with and without the teleconverter. Ive not yet tried this, but its a great thought by the designers to include that feature. My only complaints are that the device did not come with explicit notes that certain lenses were not compatible immediately. I had to discover for myself that the particular serial # for my 35mm SP lens did not allow it to be updated, but a quick trip to Tamron services rectified that with a firmware update. Also, the software that utilizes this device could use some work to make things more user-friendly without having to first consult a manual for operation. And finally, the console itself can sometimes be put onto the lens mount the wrong way--the little registration mark doesnt seem to line up with the mark on the lens, so sometimes its a game to hunt for the right fit.