kayaker353

There are a number of possibilities.   One of the most likely is that the subject is very small  in the camera and the focus system does not recognize it.  Also camera or subject movement can ...

I have had mine for about 4 years.  I like to use it where I am likely to get multiple shots, rather than a one off.  It is a bit too large for me to carry in the hope of getting a single ...

My very generous family gave me a Phantom 4 for a birthday a few years ago.  I did have access to reasonable amounts of open space.  The drone has a beginners mode which limits distance and height ...

I recently purchased a 500 PF lens to use on a D810.  It is remarkable for size, weight and image quality.  I have seen it in the store on a Z7 and it is even more remarkable.  The weight and size ...

Back in the good old days of 50 years ago, I was always taught that the most natural perspective portrait perspective was taken at 6 feet from camera to subject.  Pick your lens, but 6 feet was ...

I hesitate to offer additional thoughts, but here is another. Why not take your lens and any other that you can, mount it on a tripod and take photos of a stationary car on the street at distances ...

The current Nikon 600 mm has a minimum focus distance of 4.4 meters.

I do not think that the 5m minimum focus distance is unusual for this type of lens.  That would give a reproduction ratio of about .2 to 1.  This is in the neighborhood for similar current lenses.

I have seen a number threads on DPreview featuring motorcycle and auto racing..  Looking at some of them might be helpful

I forgot to mention shutter speed.  All of the photos except 1 were at 1/1000, the other at 1/800.  The sharp photo was of a car in a turn where its speed is likely lower than the cars coming down ...

Let's talk about environmental conditions  and distance to subject.  The first shot at 300 mm definitely appears to have the subject closer than the 500 to 600mm shots.  The longer shots appear to ...

It has been said many times, I wish that Nikon would just outfit its tripod feet with the Acra form.  Solutions like the quick release would no longer be needed.  We would have less components on ...

During the life of this thread, I purchased the lens, tuned it to the camera, purchased and installed the Hejnar foot and started using the lens for real.  I am looking forward to many exciting ...

The serial number of my lens is 221163, purchased last Friday.  I have ow gotten it out, checked out and beginning to use.  The weight and size are a real breakthru for hiking.  Great image ...

I appreciate this thread.  I just purchased the lens, not even out of the box.  After reading all of these posts, I ordered the Hejnar foot.  Murphy lives in my neighborhood.

As a D800 owner, I doubt that it will focus with any reliability at F8.   To evaluate the subject size difference of various focal lengths, you can use photoshop or even a paper print to layout ...

I have the 800 f5.6.  I can assure you that it is anything but portable and too massive to respond to small birds BIF.  It does have an important place for larger birds and places where I can find ...

I have been trying to get this software up and running for about two weeks.  First, it would not download.  Now I cannot get the installed software to run since I cannot get the license key(have ...

I have the 200 to 400 VR2.  It is a great lens.  Comparatively, its greatest strength for me is its close focusing and close image size, even with a 1.4 TC.  Think hummingbirds.  I also have the ...

Thank you for the feedback.  It gives me more confidence to move ahead.  I think that I will acquire the 500 PF first and a Z7ii after that.  I have held that combo in the store.  It will make ...