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When I take photos on my camera and view them, they sometimes don't look the best quality. When I zoom into them on the camera they look much better, like the quality and sharpness of the image is a lot better zoomed in than when first previewed.

Why is this and how can I get the image to look as good normally like when the image is zoomed in?

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    @mattdm I understand the rationale that duplicate questions should be avoided, but sometimes I think the hunt for a duplicate is a bit too zealous, and the duplication tenuous. This question is about apparent sharpness at different zoom levels on a camera monitor. The other question is about colour differences between camera and computer screen. – osullic Apr 11 '17 at 16:04
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    If there is a way to change this, it will depend on your camera. Please put this information in your question. – Myridium Apr 11 '17 at 20:57
  • @osullic Basic answer is the same. The LCD screen isn't a great representation of the actual image. That said, I'm sure we've had something closer than that one before, too. – mattdm Apr 12 '17 at 11:20
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It is because the camera is previewing a compressed JPEG on screen with lower resolution than the actual image is.

The algorithm of downsampling the image is sometimes too rough to show a nice image. When you zoom in, you are actually zooming out less, the downsampling is not that rough and the result is closer to the "reality".

This is not a concern at all because what one really cares about is not camera preview but the image after postprocessing displayed in your portfolio or printed on a wall.

I use the camera preview for really rough evaluation: Do I have everything in the frame? Is it too underexposed/overexposed? Was the shutter fast enough?

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