I would like to know how can you achieve that, considering the scan time required for each exposure.
Each exposure takes the time it takes, but the time gap btw the end of an exposure and the start of the next one can be very short.
Yes, but you don't capture the entire image at once as if you were using a global shutter. The most you can get is to start scanning the first line of pixels once you finish the last line of pixels of the previous frame, which means you have gaps per line
I can totally understand why you would think this.
But when I say gapless, I mean just that. My example of a car headlights moving through a desert road is a good one example: the line from the headlights will be continuous not dashed.
The sensor is being controlled in a new way for this feature, so from the time a line of pixels rolls on (in the first exposure) until that line of pixel rolls off (in the last exposure), every line of pixels (and every pixel in that line), is continuously exposing. Subject matter movement is smooth and uninterrupted.
The only caveat is that all of the above applies to exposure longer than a specific shutter speed. Right now it looks like that will be 1/4th or longer for the IQ4 150mp.
Not every scene will require totally gapless capture. For example, averaging 2000 frames of a waterfall at 1/30th won’t technically be gapless but since the motion is semi repetitive (as opposed to the car headlight in the desert which is directional and non repetitive motion) the result will be complete silk not meaningfully different than a gapless capture (which could be done if the shutter speed was lowered to 1/4th or slower).
The raws we have in our article, for example, we’re shot at 1/125th and look quite good to me. Only turn, and the experience of our clients, will guide best practices for how to beat use this tool.