Surely I'm not the first to try the times. So I ordered this time fast glass ball, because that should be yes without streaks. However, streaks or the confluent lines are already in the glass, so 4 stars The streaks in the glass can be seen not when the shooting distance is a bit further away or a wide angle is used. Did not bother me, and will keep the items, however, a better product photo would be desirable. In a pinch, I like to help out :-)
Today I tried it on Thenner lake. Well I have to practice vigorously, lying on his stomach, decide what now should be sharp, the ball, the background, both?
Watching one must recognize here easily but with the burning glass effect, as on the set picture