Did it again at 17 on TS17 and 18 on 14-24 at f8 and they are pretty comparible. So 14-24 is not very sharp at 14. Less sharp in 14L and even the Samyang 14 at 14mm. Comparing to 17-40L at f8, Nikkor 14-24 might be slightly better.
Conclusion: Primes are sharper - no surprise. And although 14-24 is pretty good zoom it is not nearly as good as 14L at 14 or 17TS at 17.
Which takes me to the tentative conclusion - 14-24 is not that much better than 17-40L. So if I want better its either 14L or 17TS.
Well I\'m sure there\'s some variability in the 14-24 but I\'ve seen better results. IMO this is be ter review of what the 14-24 is capable of.