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Bernardo de La Paz

(58,483 posts)
2. Can't see the photo (it's on Xitter), but note that nearer objects often are out of focus due to depth of field
Tue Aug 19, 2025, 10:32 AM
Aug 19

Depth of field is an optical property of lenses. Bright light allows cameras to stop down and that increases the depth of field, the range in which details are sharp. It also depends on the enlargement of the image. High enlargement increases the size of the blurs.

Lower light, like indoor light, decreases depth of field because the lens has to open up.

People don't usually know about depth of field because our eyes adjust focus instantly as we move the point of central interest. But even our eye lenses behave the same. This is why we increase lighting when concentrating on detail work so that the natural depth of field increases and increases the range we can get in focus, with or without glasses.

As to a reflection, trace the rays, Luke. A model some inches above a table means that the reflection would be in front, closer to the camera, and may be close enough to be cropped out by the frame.

Haven't seen the picture and the link to MSN only shows a video, not a photo.

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