I use my 200mm Q for the effects you get from its inherant flare,to me its not a flaw but an artistic feature. I was merely commenting that you can not say that and older lens is equal to the newer lenses.The coatings are not comparable.
Not that they are bad mind you.
My point is that instead of spending the money shipping lenses back and forth and paying for a modification that devalues the lens you can get AI lenses for the difference in price. In my case instead of modifying lenses to work I simply bought a body that could utilize them and saved a ton of money.
The irony of the whole thing is that Photo Shop has "filters" in it to mimic these "flaws" older lenses have.



