The 24mm World Cup Final
Canon 24mm f1.4 L v Nikon 17-35mm f2.8 v Olympus 24mm f2.8
Performance at f2.8 (Mid-Frame)
Note that the Canon 24L, away from the frame centre, is way sharper in front of – and behind – the steps in the previous shot.
Wow. It's equally impressive right of centre, at the same distance from the centre frame . . .
What's that about? Search me. Here's an action replay: same aperture, different day. The corners on this shot aren't quite as sharp as the ones you're about to see, so maybe we're seeing a waveform focal plane at this aperture. Or perhaps it was a rogue blob of moisture? At least we can't blame the adaptor. Either way, the linesman has insisted on awarding the 24L an extra point. I have used this particular 24L at wide apertures in the field and not noticed any weirdness until I went looking for it here.
