So long lenses are not common in still life photography. Knowing the minimum focus distance is useful for shooting macro or close-up photography because you must get very close. With the 100mm f/2.8 macro lens, you could be as close as 31cm and still create a tack-sharp photo. If you were shooting with the 100mm f/2, you would need to be at least 91cm away from your subject to focus on it. The Canon EF 100mm f/2.8 IS USM Macro has a minimum focus distance of 31cm. The Canon EF 100mm f/2 USM has a minimum focus distance of 91cm. The longer the focal length, the farther away you must be from your subject to be able to focus on it. The lens’s minimum focus distance determines how close you can be to your subject with it still in focus. This will tell you how much it magnifies your subject when you take a picture. It’s important to know the focal length of a lens. The shorter the focal length, the wider the angle of view and the greater the area you can capture. This is stated in millimeters (28mm, 50mm, 100 mm, etc.). The lens’s focal length is the distance between the lens and the image sensor when the subject is in focus. And as you stop down, the fine details in your image will begin to blur out. Your images will grow less sharp at apertures over f/16. So the image is a bit muddy and less sharp. This causes the light to hit the subject less precisely. When you stop down to apertures such as f/22, the light hits and bounces off the edge of the aperture blade. When the aperture is wide, anywhere from f/1.4 to f/8, a lot of light hits the camera sensor directly. For example, light hitting a spider web or water droplets.ĭiffraction also occurs in our lens and on our camera sensor. We see examples of diffraction in our daily life. Diffraction occurs when light interacts with an object. These moving parts cause lens diffraction. And they don’t have the moving parts that zoom lenses require to change the focal length. The second thing you should consider when shopping for a lens for still life photography is prime versus zoom.Ī prime lens is preferable for shooting still life genres like product or food photography.
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