Nikon D4s Exposure Issues

[shortpballer]

I just purchased a brand new Nikon D4s. I normally shoot Alpa...

This is crazy. But my D4s is changing exposures between shots....

Some come out dark, others brighter. I can shoot on High speed continuous shooting, and there are huge differences in exposure between them.

I tried this with an older 200 f/2 and a brand new 70-200 f4.

Still same thing.

...And then a couple hours later, it doesn't do it anymore. I played with some settings in the menus. But I don't think I changed anything that would have made this happen. Is there a setting that auto adjusts exposures?

 

[Leigh]

I had exactly the same issue with my D800E.

It turns out I had activated exposure bracketing, and didn't realize it.

When I figured that out and turned it off, sanity returned.

- Leigh

 

[shortpballer]

I had exactly the same issue with my D800E.

It turns out I had activated exposure bracketing, and didn't realize it.

When I figured that out and turned it off, sanity returned.

- Leigh

Its not that... the photos are completely different. After looking closer I noticed that the dark spots are not consistent throughout and they are random... as if there is a cockroach walking around on my sensor....

 

[shortpballer]

I had exactly the same issue with my D800E.

It turns out I had activated exposure bracketing, and didn't realize it.

When I figured that out and turned it off, sanity returned.

- Leigh

Here are some example pictures to prove it.

All first series taken with 200 f2 manual (sorry about mis focus it was dark and manual focus) 5000 iso f2 1/800 sec

 

[shortpballer]

And when I thought it could be the lens, I put on a brand new 70-200 f4

All taken at iso 5000 f4 1/250 sec

Here are you can really see that the dark areas are inconsistent and not an exposure bracketing problem.

I had exactly the same issue with my D800E.

It turns out I had activated exposure bracketing, and didn't realize it.

When I figured that out and turned it off, sanity returned.

- Leigh

 

[Steen]

I tried to find a hint about a user setting error by investigating the Exif information in the files, but I couldn't find any exposure differences between the darkest image and the brightest image. Strange.

Maybe try Restoring the Default Settings with the Two-Button Reset: hold the ISO and WB buttons down together for more than two seconds, both buttons are marked by a green dot. The control panels turn off briefly while settings are reset (p. 211 in the manual).

Or see page 301 about resetting to the standard settings via the menu.

​

 

[Steen]

Despite how much I like your "cockroach-walking-around-on-the-sensor" theory I must admit that I think it looks more like a defect shutter, or a defect mirror that doesn't get out of the way.

 

[BlinkingEye]

Despite how much I like your "cockroach-walking-around-on-the-sensor" theory I must admit that I think it looks more like a defect shutter, or a defect mirror that doesn't get out of the way.

I agree and my money is the shutter being defective.

 

[Tektrader]

Shutter isn't working properly, Get it fixed