RPCrowe wrote in post #14943231
The 70-200mm f/4L IS lens is a better all around lens than the non-IS version. Better IQ, better bokeh and better weatherproofing. Yes, it's more expensive but, IMO, well worth the extra money.
It is my favorite portrait lens...
The IS is a better lens, yes, not thanks to IQ, but thanks to IS, weather sealing, and rounded aperture blades. However, whether it is well worth the money or not is as you say, entirely a matter of personal opinion. In mine, it is not.
IQ is a wash between the 2, I have come to this conclusion as a result of owning both lenses, and I know of several others who have also had or tested both and found that the non-IS is equal or better than the IS in that aspect. Thus any differences in image quality between the two is likely down to copy variation, not the inherent superiority of one lens over the other.
Since the lens will be used mainly for landscapes, IS is pointless, lowering the value of the IS version even further to the OP.
IMO the non-IS would more than serve his purposes as well as saving him a nice wad of cash in the process.