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You can see the issue at the top left of this pic.

wow, I see what you mean, and thats not wide open either I presume? surprising and dissapointing for a £170 prime, I'm thinking the f2 might be the better bet now albeit more expensive.
P.S that looks like 1 Devonshire or close by?
The 35f/1.8G can 'only' be used for DX cameras (well u can use for FX but there will be a lot of vignettes).
I'm thinking the f2 might be the better bet now albeit more expensive.
That is what some of us have been telling you
I own a fair number of lenses, there are a couple I would never part with, the 35mm f2 is one of them.
I think I need some practise focusing though and getting used to the shallow dof. :|
The D90 has in-camera CA correction though doesn't it? Can't say I noticed CA or barrel distortion to be a major issue for my copy.