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I take 2 images with the same position.

Photo mode: photo

Video mode with the flash is on: video

Why the image that I get from the video frame is more narrow and not blur than photo mode?

And can I take the image like the Video mode with Photo mode? I tried and I cannot take the image like that in Photo mode, if I move the iPhone closer, it cannot focus on the subject.

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  • \$\begingroup\$ What model iPhone do you have? \$\endgroup\$
    – Eric S
    Commented Jun 25, 2020 at 14:30
  • \$\begingroup\$ @EricShain I use iPhone 6 \$\endgroup\$
    – huy
    Commented Jun 26, 2020 at 2:40

2 Answers 2

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One is a straight on single-frame image from the phone. That is the native aspect ratio of the sensor which every pixel gets to contribute to the image.

The second uses a cropped area so that the phone can filter the image to account for motion of the phone which is why a few pixels are lost. By having those extra pixels and motion information, processing can be applied to make the output look sharper.

This is essentially a digital simulation of image stabilization.

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It appears though that in video mode, the images are cropped. Here is a discussion with more in depth explanations than I can ever give. I hope it points you in the right direction.

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