Why is A mode on my Nikon D3300 overexposing at f/9 and higher?

by maxchirag   Last Updated January 04, 2017 08:07 AM

I have a Nikon D3300 and Sigma 70-200mm f2.8 OS DG lens. When I use the camera in Aperture priority mode and set the aperture to f/9, the images I am getting are very overexposed. If I underexpose using exposure compensation to between -2.7EV and -3.3EV (depending on the scene) I get properly exposed images. The same problem does not happen at lower f-numbers such as f/2.8, f/4, or f/5.6.

It only starts with f/9 and higher f-numbers, (the higher the f-number the more I need to compensate with negative exposure compensation values to get proper exposure).

The camera meters light correctly in manual mode. I get properly exposed images in manual mode when I use settings so that the camera meter reads no over or underexposure.

What could be the issue? My camera is still under warranty so if it's a camera issue I will send it to Nikon for investigation, but I want to make sure it is really a camera issue.

Answers 1

Disclaimer: This is not a Perfect answer, but I am just guessing on you camera settings.

Please check the Active Lighting feature of Camera, sometimes it happens available light is enough to have a perfect images, but due to Active D lightning feature is "ON" our images become over exposed. Active D-lightning may be on Extra high or Auto mode. Please check.

P.S: May be I am 200% wrong, but It's complete guess which surely have an impact on your image.If answer is not helpful enough, please don't downgrade it.

Atul Agarawal
Atul Agarawal
January 03, 2017 22:29 PM

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