Thanks for the input timestone.
Basically what I notice with this subject is that its difficult to see a difference in the end result.
I was surprised that the 28-80 zoom performed so well, i was expecting alot of purple fringing as i have seen before. I may have to use it some more. past 80mm it also has macro zoom.
I used the A-zoom on a pentax p30, wich was given to me in my youth. at the time i didn`t know how to use my old m42 takumars so it was my only lens for some time and it nearly killed the joy of photography. I mainly had problems with focus and exposure. the p30 with M 40mm 2,8 and A 50mm 1,7 focus and meter much better so i still blame the lens.