I have a question for photographers who have worked with film cams from the 70's/ 80's.

First, if you have used, or know the quality of Tokina lenses I'm curious to hear your feedback. The focus on my wide angle is broken, so I'm searching out a new one.

I'm also wondering about the EXTRA wide aspect. Will there be fractional adjustments with the settings, as there are with a teleconverter? Does the "extra" make much of a difference, or is it just selling point?