2
votes
Why is my Nikon D5100's pop-up flash only lighting parts (top/bottom) of the frame?
As xenoid said in their answer, at any shutter speed faster than sync speed there is not a single moment when the full frame is exposed, that's why sync speed is usually the fastest speed for flash to ...
- 4,760
2
votes
Why is my Nikon D5100's pop-up flash only lighting parts (top/bottom) of the frame?
In a DSLR the shutter is a double curtain. Initially the first curtain covers the sensor. To take a shot, the first curtain is opened, then after the set exposure duration the second curtain follows.
...
- 20.6k
Only top scored, non community-wiki answers of a minimum length are eligible