I have an issue with my 55-300 PLM. On long end when photographing things that are far away it is very soapy around the edges, it clearly lacks resolution and frankly I almost never photograph planes at 300, rarely beyond 200mm as most pictures are thrown away. This is not an issue for things that are close so I consider 55-300 great flower photography lens, for example
Only for far away it starts to piss me off. Below 250 it is ok, from 200 down it is as sharp as I want.
I can remove this soapiness with Topaz or some other program but I want my gear to do the job, not rely on programming. And in long run I pay more for good lens then for program and updates
So I am considering getting myself DA* 60-250. Length-wise it will not hinder me as I do not use 300mm range for planes. But I wonder if it is worth getting it, will the sharpness and IQ that much better from 55-300 at 250mm? Has anyone some sort of comparison between those two lenses for long range shooting? Not birding as you are pretty close to bird anyway, but planes and so? Also will AF-C be much worse for SDM then it is for PLM? Think planes zooming by during start or landing?
And before someone say anything about DFA 150-450 - I do not have enough money