Complex sentence: The Takumar branded lenses were well respected for the line of Super Takumar designating the very well performing coating applied to the lens as well as the optical formulas that make up the lenses while a majority of the industry was still satisfied with the "plumb" coating.
Split into simpler sentences: The Takumar branded lenses were well respected for their line of Super Takumar, which designated the high performance coating applied to the lens as well as the optical formulas used to make them. The majority of the industry at the time was still satisfied with the "plumb" coating.