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@WimVanCraen wrote:"There is nothing wrong with your camera. Every DSLR camera body does what you are experiencing. You need to revise your expectations downward. That is my advice."
I've seen Nikon cameras where this wasn't an issue. There was no delay there...
Here is a recent thread with links that show you how a mirror works, and why your Nikon claim is demonstrably false. There is a link in the first post to video that shows how a mirror and the shutter work together.
https://community.usa.canon.com/t5/General-Camera-Discussion/You-wanna-see-mirror-slap/td-p/289409
This is how a DSLR works, and how it differs from a mirrorless camera. If you watched the video, then you saw how the mirror would open, then shutter would expose the image sensor, and finally the mirror would drop back down. When do you think the image data gets sampled?
The image data in DSLR gets sampled AFTER the mirror drops back in place.
The data has been captured by the camera, and the camera can read the data line by line, row by row, or whatever. The point is that the image sensor is no longer exposed to light when it is being read, which means the data is STATIC, and not changing.
A mirrorless camera has no mirror, to block off the light.from reaching the shutter and the image sensor. Mirrorless cameras must read the image data VERY quickly when in continuous shooting mode, while the shutter is closed. The image data is not static, and is constantly changing. This can be a problem when subjects are moving within the frame.
Sampling dynamic image data can result in "rollling shutter" effects on moving subjects This effect is readily apparent with video shot from a moving vehicle. All of the light poles will look bent.
Back to the mirror in a DSLR. What this means is that DSLRs, all DSLRs will always have a slight pause between frames. This is a fact, without exception. Why the pause is apparently longer with slower shutter speeds is a good question. But, it is a normal behavior of all DSLRs.
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