Nikkor 18mm f4 AI sharpness on corners?

Started Jun 20, 2013 | Discussions thread
OP gammada Junior Member • Posts: 41
Re: makes no sense

brightcolours wrote:

A 18mm prime on APS-C? Why? You are better off just using a 18-55mm VR kitlens, to be frank.

If you were talking about a D700 instead, it would make sense.

Just look at an UWA zoom for APS-C. Either the Tokina 12-24mm f4 DX, or the Sigma 10-20mm f4-5.6 DC. Or if you have a bit more money to spend, either the Tokina 11-16mm f2.8 DX or the Sigma 8-16mm DC.

Any idea on how sharp is the Tokina on the corners? Price is spot on for me.

As for why would I want an 18mm lens on an APS-C sensor, well, it all has to do with geometric distortion. Since the photos I sell must have perfectly aligned horizontal and vertical lines, I'm a bit afraid of going wider and then having to do extensive work fixing that distortion.

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