light_pilgrim wrote in post #17254142
Have to say this move I do not understand 100%.
For a landscape photographer, when you mostly operate between F/8 and F/14...what is the big deal to get this lens? You are cutting 35 mm, not gaining any additional light and is it really such a fundamental difference in sharpness at F/10?
Talking practical landscape examples....
yes, at f10 there probably isn't a huge amount of difference in sharpness straight out of the camera. however, don't forget that the 24-105 has extremely heavy distortion at certain focal lengths as people have pointed out. that means after correction your sharpness is going to be affected. the 24-70 f4 has best in class distortion figures, and is basically sharper in all respects.
that said, i'm sure you're gonna use whatever lens you get for more than just landscape right? like i mentioned before, at apertures > f5.6ish the 24-105 gets very unsharp fast, to the point now that I can't really use it for anything serious. and i believe my copy to be one of the best--when stopped down it is quite sharp.
i also own a 24-70 2.8 ii which is probably the sharpest 24-70ish 35mm lens ever made by any company i know of. so the f4, for me, is just supplemental, mostly for low-light, hand-held, situations.
you know............... if i were you, i'd just get the 24-70 2.8 ii and call it a day knowing you have the best there is.
then all this is moot.