Yes.without even sun shade.nightforce said that is normal with this model.i mean 5 x and max elevation. Never be used such,no one shoots by 5 X on + 1000 meters,but I thougt that something was wrong with mechanism.
Now I know..) but firs it was surprise for me. I have got nxs 5.5-22 model and it does not have same effect. guys said that kahles 624 has the same effect.