So I just got my new (slightly used) 70-200 F2.8 VRII. Reading the pdf instructions online page 19 last line states:
"With auto focus cameras featuring an AF-ON button, vibration reduction does not function when the AF-ON button is pressed." I set my AE/L AF/L button to focus, so I focus with it. Does this mean that VR is not working when i do this? Does this apply to all Nikon VR lenses?
If so I'll go back to using the standard method of using the shutter release button to focus and trip the shutter but I sure do like using the AE/L-AF/L button to focus.
I use the ae-l button to focus on my D7100. Indeed I get no vr on my 18-105 when I do this, but it activates when I half press the shutter button anyways. I often have them both pressed at the same time.
This the dance of my dismay, but I've been getting pretty darn good at it lately (finally after 2 months!). Tracking with a half pressed shutter button while stabbing AF on and off takes practice, but I've found it profoundly better when I'm following moving critters... To include my 5 year old.
> >This the dance of my dismay, but I've been getting pretty darn >good at it lately (finally after 2 months!). Tracking with a >half pressed shutter button while stabbing AF on and off takes >practice, but I've found it profoundly better when I'm >following moving critters... To include my 5 year old. >
Assuming the D7100 works the same as the D800, if you use AF-C mode you can just keep your thumb on the AF-ON button and it will continually refocus as your subject moves - just hit the shutter when you want to take the shot, or hold it down for continuous shooting - and each shot will be in focus.
Using this technique, rather than thinking about re-pressing AF-ON or holding the shutter half-way, you can concentrate on keeping your subject where you want it in the frame. I'd suggest selecting 9 focus points to help you track the subject you want and not other things/people who may also appear in the frame.
That works great as long as you dont have a close cluttered background, or a critter moving in a relatively predictable manner.
In my experience, it will lose focus long enough when something small (small bird, chipmunk, squirrel, etc) either moves very erratically or starts and stops quite a bit (at the usual mach 1 speeds that the little guys do) that they will be gone before the focus comes back to where it needs to be (a second or two, quite often)
Most of my wildlife shooting is in dense areas with little to no "clean" or distant background. I find tracking with lock after starts and stops and during quick directional changes requires me to "do the dance" with the AF button, even sometimes using a pre-focus-and-wait method to let the critter pass through the plane of focus.
This is just what works for me. I get many more keepers this way than I do just allowing the AFC to C it's AF. In any kind of open area, just letting it do it's thing is what I do, as I don't have the contrast and edge jumps that cause the AF to go wonky.
The statement is misleading/incorrect. VR does function even if the AF-On button is pressed. What the statement should say is that VR is not initiated by pressing the AF-ON button. Actually that statement isn't completely true either. Starting with the D4 and D800, the AF-ON button will initiate VR in addition to the shutter release.
If your camera body does not start VR when pushing the OF-ON button, VR will still start when you push the shutter button half way. It doesn't matter if you are pushing AF-ON at the same time. You don't have to abandon back button focusing to use VR. You should be able to demonstrate this by comparing pictures taken at a slow shutter speed with VR on and with VR off.
Gary in SE Michigan, USA. Nikonians membership - My most important photographic investment, after the camera. D4, D810, D300 (720nm IR conversion), D90, F6, FM3a (black), FM2n (chrome) YashicaMat 124, Graflex Speed Graphic 4x5 My Nikonians Gallery & Our Chapter Gallery
I believe I was wrong. Maybe I just never noticed, but I can hear the vr activating and deactivating when I use the ael button to focus. I probably never noticed it because I hear the focus motor and when I am on af-c I'm not worried about the vr.
I just noticed it, possibly subconsciously because of this post? I'm just goofing around in my kitchen.
Is there a menu setting in the D800 to set it so VR does not activate with the AF-on button but only with the shutter release button? For the way I usually work, having the VR turn on every time I focus is quite irritating, as well as wasting battery power.
Interestingly enough, when I contacted Nikon USA Support in inquire about this for both D4 and D800, I was advised to the contrary. They indicated that the AF ON does NOT initiate VR on those bodies, or any bodies and that you MUST use shutter button. I couldn't find any documentation to support that the AF ON button works for this and that is why I sent an inquiry.
I sure couldn't find anything in my D4 manual about it. But the AF-On button definitely initiates VR when pressed. This change from previous bodies was a matter of some controversy when the D4 & D800 were released.
>I sure couldn't find anything in my D4 manual about it. But >the AF-On button definitely initiates VR when pressed. This >change from previous bodies was a matter of some controversy >when the D4 & D800 were released.
yes, the same for me: on my d800, the af-on button initiates VR when pressed. Fabien.