For each picture, the first and closest box is what should be focused on. My first photo actually focused on the middle box, but that's okay because the aperture is well captured. With that first photo, everything other than the middle box is blurred out. The reason and key to that was because of the aperture. The aperture of that photo was f/1.8, which was the smallest capability. With a small aperture, the DOF, or depth of field, is decreased. Everything that is blurred out in that first photo is what could be a wider depth of field, but because of the smaller aperture, the camera focused on the middle box and blurred everything around it.
The second photo taken has an aperture of f/8. We increased the aperture to increase the depth of field, and this time it is focused on the first and closest box. The photo isn't a hundred percent clear, but there is a significant difference with the amount of blur. You can tell with the blurred people and tree in the background, they're not focused on, but the figures are formed whereas with the photo with f/1.8 aperture, those objects in the background can't be formed. The third and final photo taken has the largest aperture of the three taken. It has an f/16, which has a large depth of field. In other words, everything is almost fully clear, with little blurred out. All three boxes are clear, the background is somewhat blurred, but everything can be clearly formed and figured. Since it has a large aperture, the depth of field is increased. The first photo had small aperture, so everything was blurred other than the box focused on. While the last photo had a large aperture, everything can be seen, everything past the focused box can be seen, the depth of field.
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AuthorHigh school student learning how to capture priceless moments through a lens. Archives
May 2017
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