Nikon D7500 focus question
Apr 12, 2020 12:18:53 #
When using the Nikon 200-500 this morning I noticed that the focus point changes when you move from auto to one of the manual modes. When in auto the focus point (square) is in the center but when in any of the manual modes it goes to the lower right of the screen. It’s probably a dumb question, but why?
I also have the camera set for 51 focus points but there is only one. It may be hidden there somewhere but I can’t find anything in the manual or in David Busch’s guide. Appreciate any help.
I also have the camera set for 51 focus points but there is only one. It may be hidden there somewhere but I can’t find anything in the manual or in David Busch’s guide. Appreciate any help.
Apr 12, 2020 12:32:07 #
JimBart
Loc: Western Michigan
I had the same problem on the 7100. Read the manual under focusing and you see how you can change those focus locations through the use of the focus button on the camera front and the arrows on the back of the camera.
Apr 12, 2020 12:54:36 #
Thanks Jim. That explains how to change them but unfortunately doesn’t explain why they change when moving from auto to manual or reverse.
Apr 12, 2020 13:00:32 #
Jack47 wrote:
Thanks Jim. That explains how to change them but unfortunately doesn’t explain why they change when moving from auto to manual of reverse.
Just a wild guess her,
in auto, your focus point is in the center, guessing that in manual that maybe you have the focus point set to the spot that it comes up in.
Apr 12, 2020 13:23:34 #
Tom DePuy wrote:
Just a wild guess her,
in auto, your focus point is in the center, guessing that in manual that maybe you have the focus point set to the spot that it comes up in.
in auto, your focus point is in the center, guessing that in manual that maybe you have the focus point set to the spot that it comes up in.
You were right Tom. Once I set it in a manual mode in stayed there in all manual settings and came up again after I turned it off and back on.
Now if I can find out why it shows only one focus point when I have it set at 51. Thanks again.
Apr 12, 2020 13:27:29 #
JimBart
Loc: Western Michigan
You need to set it up that you see all focus points or wrap around in you menu setup settings I think. Or if you read closely you can also have 29 focus points etc. I use the 29 for birds especially when moving.
Apr 12, 2020 16:07:31 #
Apr 12, 2020 16:35:04 #
Jack47 wrote:
Thanks Jim. That explains how to change them but unfortunately doesn’t explain why they change when moving from auto to manual or reverse.
I suspect the clue is that you wrote of the “manual modes” as plural and “auto” as singular. FYI there is only one manual mode ! Since you refer to P, A, and S modes as manual modes I surmise that to you “auto” refers strictly to the “Green mode” aka “PhD mode”.
From your 1st post I infer that what you’re really saying is that when in the PhD mode ... aka “Green Mode” ... the AF behavior is different than in all other modes. Okay ! That is normal. All non-PhD modes honor inputs from the user. It is you Mr. User who instructed the AF to park itself in the corner. BUT ... the PhD mode honors little to none of Mr. User’s inputs or instructions and thus you have a different AF behavior in that mode.
In PhD mode the camera knows best and doesn’t care what you think. In PhD mode your job is confined to “Push here, Dummy !”. Since PhD mode lives in a parallel universe, what limited input it will obey from you may be insular, not crossing the interstellar void to affect the other modes.
Apr 12, 2020 17:34:04 #
If you buy Steve Perry's ebook for Nikon auto focus your confusion will go away. It's more than worth the price.
Apr 12, 2020 21:47:49 #
Jack47 wrote:
Thanks Jim. I did set it up for 51.
You set it up making 51 points available. Now you have to hold the button on the front of the camera on the side of the AF/M switch. While holding the button turn the front control dial, while looking through the view finder.
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Apr 12, 2020 22:36:47 #
User ID wrote:
I suspect the clue is that you wrote of the “manua... (show quote)
You are right. Anything that accepts manual intervention I look at as manual and not just M which is totally manual.
Dumb me.
Apr 13, 2020 06:43:03 #
kpmac wrote:
If you buy Steve Perry's ebook for Nikon auto focus your confusion will go away. It's more than worth the price.
Apr 13, 2020 06:54:25 #
billnikon
Loc: Pennsylvania/Ohio/Florida/Maui/Oregon/Vermont
Jack47 wrote:
When using the Nikon 200-500 this morning I notice... (show quote)
Are you on continuous auto focus or single shot auto focus?
Apr 13, 2020 07:07:16 #
For sure you do not understand the AF of your camera. Photographing wildlife it makes sense to use 51 points AF to make it easier for the camera to track action in AF-C. If photographing subjects like landscapes or portraits, subjects that do not move, your best friend is AF-S that uses only one AF point for precise focus. AF-S is selected by the camera when set to the Manual mode. In AF-C you select a focus point and the camera will use other AF points to keep tracking the subject or you select AUTO AF and now the camera makes the selection for you, not desirable if you want to be in full control.
One of the great advantages of single point AF is that if the subject is not in focus the camera will not fire, assuming you are using the shutter for AF-AE. This is a very simple explanation but if you want to learn more I join those that recommend the book by Steve Perry.
One of the great advantages of single point AF is that if the subject is not in focus the camera will not fire, assuming you are using the shutter for AF-AE. This is a very simple explanation but if you want to learn more I join those that recommend the book by Steve Perry.
Apr 13, 2020 07:41:13 #
camerapapi wrote:
For sure you do not understand the AF of your came... (show quote)
In AF-C, if you select single point, the camera uses a single point. In single point the camera will fire even if the subject is out of focus, if release priority is selected in the menu. I see you recommend Steve's book. That's good advice, but buying it isn't enough. To be beneficial you have to read it, maybe two or three times.
--- Unless I'm wrong.
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