Originally posted by UserAccessDenied Have you shot a D500, or only the D800?
I haven't used the D500 for BIF yet , I am more of a FF shooter for wildlife, the D800 in 1.2 crop is what I like for BIF just for the extra frame rate. If I was to go for a new camera might would be the D850, mind you the D810 are starting to drop and the used market is looking even better for the D810 which I think is better for BIF because of the tweaking of the AF and also the addition to group AF points that I think work better for some BIF. The only reason why I am looking at a new camera is that my D800 is getting old and beat up even more so that I use my first copy as a beater and the second as a backup.
If I was to get a new camera it would be as a backup to the second copy of the D800.
Sigma 150-600 sport vs $4400-$8000 lenses - Page 2 - PentaxForums.com
Here are some AF testing with the 150-600 sport with 1.4 tc on the D800. These are conditions that I would not normally use them in and was just a test to see how the combo would work
---------- Post added 09-17-2018 at 09:09 PM ----------
With the 200-500 I find that the lens is fast to acquire AF lock but the 150-600 sport if feel is slightly better at tracking but where the 150-600 pulls ahead is the ability to set custom focus limiter of your liking.
The 300mm f/4 PF is blazingly fast for just about anything
---------- Post added 09-17-2018 at 09:13 PM ----------
You don't always have to buy the most expensive lenses also take the 70-200 f4
I went out and tested the lens to see when and how the lens would fail in tracking
I like to preform these kinds of tests to see how it will fail, here right up to 3.5 meters on traffic at 110km the D800 and the 70-200F4 tracked perfectly right up to insane accuracy.
One of the reasons why I like to test this way is that it really tells how well the camera will predict the location of the subject at the time of the exposure
so here you can see where I set the AF point and if we take a look at where the camera focus we can see how much it missed by
Here you can see how much the camera missed in predicting the location of the target. even when the subject is traveling at 30m per seconds. I don't care how Nikon is able to do this, all I care about it that it can.
A few summers ago I was photographing swallows as they dived towards while passing under a bridge in a kayak, I took the D800 and the 70-200 F4 and as I passed the bridge this is what I got 2 consecutive frames
The first shot was at 5-7m and the second was at 4-6m away
Last year I switched to AF-C for most of my macro work done handheld with a very high success rate also and stopped using a rail and live view