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D-7100 Nikon Settings
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Jan 20, 2016 19:39:46   #
Jules Karney Loc: Las Vegas, Nevada
 
When I shot basketball pics. last night my Nikon settings would not stay put.
In aperture, iso 1250, shutter speed 500 at 2.8 the only setting that stayed was aperure. Everything else moved and change by itself. I don't get it.
All you smart club members please help me. Thanks in advance.


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Jan 20, 2016 19:44:38   #
tsilva Loc: Arizona
 
If you actually shot in aperture mode like you state, then the aperture is the only thing that stays constant. I assume you have auto ISO on also. IF you want to keep the settings the same throughout then you must shoot in FULL MANUAL.

The camera did what you told it to do.

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Jan 20, 2016 19:44:46   #
Bill_de Loc: US
 
That is what aperture priority is supposed to do. You pick the F stop and the camera picks the shutter speed, and the ISO if you have auto ISO on.

If this is a new to you camera, a walk through the owners manual might be a good idea.

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Jan 20, 2016 20:06:28   #
mcveed Loc: Kelowna, British Columbia (between trips)
 
I think you ought to reset your camera to factory default settings and take a long hard read of the user's manual. Only the second of the three shots you posted was shot in Aperture mode; f2.8, 1/1000 sec and ISO 5000. The first and last were shot in Manual mode: #1 1/400 sec, f2.5 ISO 1100; #3 1/640 sec, f2.5, ISO 2200. Unless your camera is incorrectly recording the settings you switched modes while shooting. I suspect you were in Auto ISO which would account for the wide variation. On at least one shot you were using spot metering. Thats OK for manual mode (full manual that is including ISO), but pretty risky for Aperture mode. Either you were changing settings or your camera is in need of a checkup.

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Jan 20, 2016 20:11:33   #
Rongnongno Loc: FL
 
When a camera says 'Priority whatever'... it really says: Pay attention.

Aperture priority is only 1/3 of the story.
Speed priority, same as above.
Manual is 2/3 third of the story.

Why? Because ISO is full auto and it counts for the missing third. Change it to 'Fixed ISO'

Then Aperture mode = Aperture + ISO 2/3 (variable Speed)
Speed = Speed + ISO 2/3 (variable Aperture)
Manual = Aperture + Speed + ISO (no variable)

This is why the camera EV model is crappy (all over the place) if you do not pay attention.

Reading the freaky manual does not explain that.

What you have observed is an hybrid mode.

If you pay attention you realize that the manual mode (if ISO is not set) is really ISO auto...

Manual = Aperture + Speed 2/3 (Variable ISO)

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Jan 20, 2016 20:34:42   #
Marilyng Loc: Lorain,Oh.
 
Jules Karney wrote:
When I shot basketball pics. last night my Nikon settings would not stay put.
In aperture, iso 1250, shutter speed 500 at 2.8 the only setting that stayed was aperure. Everything else moved and change by itself. I don't get it.
All you smart club members please help me. Thanks in advance.


I think your photos are amazing,aren't you happy with them?

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Jan 20, 2016 20:46:49   #
Rongnongno Loc: FL
 
Marilyng wrote:
I think your photos are amazing,aren't you happy with them?

Here is a clue:



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Jan 20, 2016 20:49:00   #
Marilyng Loc: Lorain,Oh.
 
Rongnongno wrote:
Here is a clue:


Ok,try Topaz Denoise works great on these kinds of photos!

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Jan 20, 2016 22:11:01   #
Mac Loc: Pittsburgh, Philadelphia now Hernando Co. Fl.
 
Jules Karney wrote:
When I shot basketball pics. last night my Nikon settings would not stay put.
In aperture, iso 1250, shutter speed 500 at 2.8 the only setting that stayed was aperure. Everything else moved and change by itself. I don't get it.
All you smart club members please help me. Thanks in advance.


A helpful book is "Understanding Exposure" by Bryan Peterson.

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Jan 20, 2016 22:25:10   #
BebuLamar
 
Mac wrote:
A helpful book is "Understanding Exposure" by Bryan Peterson.


Never like that book!

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Jan 20, 2016 22:45:03   #
sinatraman Loc: Vero Beach Florida, Earth,alpha quaudrant
 
you are the only one I have ever heard of that does not like that book. Just cuorious, why?

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Jan 20, 2016 23:15:07   #
Jules Karney Loc: Las Vegas, Nevada
 
Thank you. I just want to learn more about the camera and the settings.
I know I am doing something wrong with the manual part. I will learn it.

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Jan 20, 2016 23:17:03   #
Jules Karney Loc: Las Vegas, Nevada
 
Okay I'll bite. What are you trying to say. This pic. looks terrible blown up.

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Jan 20, 2016 23:27:10   #
Rongnongno Loc: FL
 
Jules Karney wrote:
Okay I'll bite. What are you trying to say. This pic. looks terrible blown up.

It is not terrible, the color noise is easily removed w/o loss of sharpness and w/o 'de-noise or any other plug-in). The noise left over is not disagreeable.

The information I gave you earlier is more important as you will not see that in your manual.

The idea that aperture and speed are constant came from the film era when we set the ISO with the film and promptly forgot about it.

ISO is now a variable that needs to be fixed in order to obtain predictable results in the A or S mode. In 'manual mode' the ISO is a variable!!!! so you get variable results too!

(use quote reply so that folks know who you are answering).

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Jan 20, 2016 23:32:10   #
Nick K Loc: Long Beach CA
 
Jules, I think you got some great shots, the framing and action is great, they may need some help blown up but you can work on that. You bring up an interesting question if you shoot on manual but with auto ISO set your camera should take the speed and aperture then set the ISO to produce the picture. This sounds more like a semi-auto mode or the program mode. I will have to test this on my D-7100. Does anyone know the answer on how the camera will soot at this setting? (which I don
Jules Karney wrote:
When I shot basketball pics. last night my Nikon settings would not stay put.
In aperture, iso 1250, shutter speed 500 at 2.8 the only setting that stayed was aperure. Everything else moved and change by itself. I don't get it.
All you smart club members please help me. Thanks in advance.

Reply
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