Mark7829 wrote:
There are three buttons the camera for focus options. You have the manual, I don't need to explain.
Since you don't have the manual, apparently you need quite a bit explained.
Mark7829 wrote:
The bottom button would give him precision focus. He did not use that. Had he done so, he would have solved this issue. The OP said he used the middle button or cross hairs. That is what he said. There is no reason not to accept his explanation.
"The bottom button"???? There are no such buttons. There is one dial, which is probably what you are referring to. I'm not sure whether that was what the OP meant, or if he was just telling us the location of the manually selected focus point. It doesn't make any difference!
What you are claiming is unlikely, and nearly impossible. He would have to activate Auto Focus and then move the camera far enough to cause the focus point to be changed to an adjacent point. That is the way Dynamic Area focus works if and only if he is using AF-C. There is no reason to use AF-C, as the subject is stationary. There is no reason to enable AF and then move the camera far enough to cause a change in the focus point. And such a scenario is exceedingly unlikely.
Mark7829 wrote:
He does not need more DOF. There is adequate DOF for the focus point. The grasshopper is in the middle, dead center of the image.
An absurd assessment of composition. That grasshopper is too small to be "the object" of attention all by itself. The entire flower that it is sitting on isn't really large enough either, but might at least work.
He needs more DOF if that scene, at that distance with that focal length, is to provide a decent photograph. Photography 101.
Mark7829 wrote:
That should have been the focus point. There is no other subject in the image of note. The camera selected the leaf. It is the only thing in the image that is in focus and sharp. Are you going to say that the OP selected the leaf on the left and not the grasshopper?
Granted the grasshopper should have been the focus point, but it is not the only object of note. It is the center of the area of note! The camera did not select the leaf, it selected some other point that is on the same plane as the leaf. It appears the high contrast edge of the pedal behind the grasshopper may have been the specific object focused on. Every Nikon user manual (and probably every book that has ever discussed using Auto Focus) explains the problem of too much fine detail or too much high contrast detail that is on different planes but is within area seen by the "focus point". AF cannot decide which plane the photographer wants. In this case the objects in the scene that the "focus point" is viewing are on a plane oblique to the sensor. It seems to have chosen the highest contrast detail to focus on. (See page 70 of the D300 User Manual for a very simplified discussion.)
Mark7829 wrote:
Go away - you're not making sense. You really should try another "fools" forum.
You really would prefer if people left your nonsense alone in a "fools forum" all your own, wouldn't you. You are welcome to your opinion, but so is everyone else. Every single article of yours has contained at least one attempt at this sort of Ad Hominem, which logically suggests that you know already, and very clearly, that what you are saying is not logically sound and cannot be supported.