I got a Nikon 3400 in May. While shooting some water droplets I noticed the droplets contain motion blur even at the highest shutter speed settings. So I tried to verify this by clicking a pic of the ceiling fan [In India]. I might not know the exact speed of the fan, but I am sure as hell the fan does not do more than 4000 rotations per second. And yet, I get motion blur on the fan. Images attached.
Is my camera broken? Should I get it repaired? Or am I not understanding something?
Image Settings:
Mode: Manual
Aperture: f/5.6
Shutter Speed: 1/4000 sec
ISO : 25600 (It was indoor)
Focus: Manual
Metering: Spot
Update: The problem does not occur when I click the image in Live View Mode. The image appears darker and the motion is frozen. But When I switch to View Finder mode, something's not right.
Added Settings Images.
Above Image: Shot in Live View with 1/4000, f/5.6, ISO-25600
Shot in View finder mode with 1/4000, f/5.6, ISO-25600
PS: I checked the image properties and all the settings and details are exactly same. The camera does not show any change in the shutter speed value it displays.
Update: Check out the experiment at http://atulbhats.com/cam-demo
Answer
Finally!
The Nikon Service center was able to solve it after trial and error replacing each and every part. The replacement that worked was with Aperture Control which even the service guy was not sure was wrong.
But it did the trick!
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