MR BILL wrote:
I am an avid non-pro Nikon D4 high school sports shooter. Before venturing to my next game, I'd like to know if anyone knows what is PROBABLY going on with my equiptment? Symptoms: using a 70-200mm VR II lens set for auto focus/action (I don't think any switches were mis-set) I shot many full continusous bursts of soccer. Upon processing on LR5 this is the results....some sequences begin focused & then gradually OR abruptly become way out of focus. This occurred over & over...some nice shots...many terrible failures.....without any nearby action until next game is there any help in trouble shooting or ideas to help me? Hoping for the best while preparing for the worst......
I am an avid non-pro Nikon D4 high school sports s... (
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Spot focus is your problem. Your camera is re-focusing very quickly on a very small "spot". Hence what you wish to be in focus has moved out of the "spot" It is reacting more quickly than you are. You would do better to change from spot to area focus. IMHO as an amateur. :-)
MR BILL wrote:
another pair
If you provide shots please set them to store original so what we may download them so that we can see the metadata and focus point. This will help greatly in analyzing the images. Thanks
CHOLLY wrote:
Parts of your images REMAIN in sharp focus... the referee, the trees... one or the other background players.
I say camera and operator are probably the likely reason for soft photos.
I tend to agree. If the camera's AF module is set for shutter priority AF some shots will not be in focus, especially if the focus bracket is not on the subject.
Consider also that a low shutter speed or not high enough ISO will not guarantee sharp pictures. In your case it would be preferable to increase ISO and make sure your shutter speed is beyond 1/400sec. minimum or higher if possible. Aperture priority at times due to lighting conditions will select a slow shutter speed and in that respect for this type of photography shutter priority is a better shooting mode since the operator is selecting a shutter speed known to render the pictures sharper. Useless to repeat that the shutter speed should be HIGHER than the equivalent focal length of the lens in use. In my case, I also disable VR.
Hope this gives you some thoughts.
Hopefully, this is an easy fix. Check your setting for continuous high shooting in the menu. If you have it set to 11, it retains the focus and exposure settings from the first shot. If you want it to adjust focus and exposure continuously, you have to reduce your continuous high speed setting to 10 frames per second. I'll keep my fingers crossed that that is your issue, it was mine!
djb663 wrote:
Hopefully, this is an easy fix. Check your setting for continuous high shooting in the menu. If you have it set to 11, it retains the focus and exposure settings from the first shot. If you want it to adjust focus and exposure continuously, you have to reduce your continuous high speed setting to 10 frames per second. I'll keep my fingers crossed that that is your issue, it was mine!
Also verify that the camera is in AFc versus AFs. and Multi focus points is better in this as the camera will try to use greater depth of field to bring everything into focus. Single point focus is going to be tough on fast moving images.
what is your f stop at? looks to me like you are shooting too open and need more dof. In shot three focus is on the ref.
MR BILL wrote:
I am an avid non-pro Nikon D4 high school sports shooter. Before venturing to my next game, I'd like to know if anyone knows what is PROBABLY going on with my equiptment? Symptoms: using a 70-200mm VR II lens set for auto focus/action (I don't think any switches were mis-set) I shot many full continusous bursts of soccer. Upon processing on LR5 this is the results....some sequences begin focused & then gradually OR abruptly become way out of focus. This occurred over & over...some nice shots...many terrible failures.....without any nearby action until next game is there any help in trouble shooting or ideas to help me? Hoping for the best while preparing for the worst......
I am an avid non-pro Nikon D4 high school sports s... (
show quote)
Someone else likely has said this, but when shooting in burst mode, the camera will re-focus after every shot. It's likely it is focusing on something other than the subject between shots.
After seeing your shots, I suspect you have auto focus on spot, which means the lens focuses on that spot where ever you are aiming it, the trees, the ref, or the gal kicking. Try changing the pattern to take in more space, like an averaging, that might improve the overall focus.
I'm going to offer a different possibility for you to consider. I shoot a D700 so I think the controls are similar. I also notice the two shots seem to have different dof's as well as degree of lighting. Is it possible that as you are tracking you are accidentally moving the daisy wheel and resetting the f stop settings. It would be easy to do. Check the settings on the pictures and see if the f stops are changing. Hope this helps, it would be a easy fix and less costly.
OR... repost the pictures and check the STORE ORIGINAL box....
cjc2
Loc: Hellertown PA
I'll take a SWAG! (Scientific wild --s guess!). Your focus was set on AFS! How do I know, because I've done that before, and got the same result! Can't speak about the D4, because I skipped that for the D4s, but I do not like the new arrangement for setting focus (probably mostly because I've used the same method from the F5 until now).
Stef C
Loc: Conshohocken (near philly) PA
Have you looked into back button focus? Completely changed the game for me..
Stef C wrote:
Have you looked into back button focus? Completely changed the game for me..
I recently switch to BBF myself and will echo the same - great tip & technique.
Since you are shooting in bursts and the exposure seems to be changing between frames, I wonder if you're shooting with auto-bracketing enabled. I've forgotten to turn bracketing off a couple of times when shooting single images and it almost drove me nuts trying to figure out why the EV, etc was changing frame-to-frame. Anyway, it's a thought...
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