Nikon Series E
When they were introduced, the "E" lenses got a bad rap, primarily because Nikon went out of its way to label them as economy lenses not worthy of the Nikkor name. The all plastic build in an age where men were men and Nikkors were brass didn't improve their image any. They are not mulricoated, so contrast may take a hit. Some are good (the 50mm and 35mm), a few are great 100mm 70-150 zoom), and some should have been delivered from the factory to the dump (28mm, truly the worst). Looking at some of the dross Nikon as since sold, Most of them look pretty good now.