![]() ![]() For example, when producing a 6×4-inch (15×10-cm) print using 35 format (36×24 mm) film or sensor, a life-size result is possible with a lens having only a 1:4 reproduction ratio. Īpart from technical photography and film-based processes, where the size of the image on the negative or image sensor is the subject of discussion, the finished print or on-screen image more commonly lends a photograph its macro status. Likewise, a macro lens is classically a lens capable of reproduction ratios of at least 1:1, although it often refers to any lens with a large reproduction ratio, despite rarely exceeding 1:1. The ratio of the subject size on the film plane (or sensor plane) to the actual subject size is known as the reproduction ratio. In some senses, however, it refers to a finished photograph of a subject that is greater than life size. ![]() īy the original definition, a macro photograph is one in which the size of the subject on the negative or image sensor is life size or greater. ![]() Macro photography (or photomacrography or macrography, and sometimes macrophotography ) is extreme close-up photography, usually of very small subjects and living organisms like insects, in which the size of the subject in the photograph is greater than life size (though macrophotography also refers to the art of making very large photographs). Headshot of a dragonfly taken with a 100 mm macro lens coupled with a 50 mm lens in reverse at the end Macro photograph of an ant Macro photograph of a fern sorus using 4:3 aspect ratio Macro photograph of a common yellow dung fly ( Scathophaga stercoraria) made using a lens at its maximum 1:1 reproduction ratio, and an 18×24mm image sensor, the on-screen display of the photograph results in a greater than life-size image. This means that you’ll need to narrow your aperture and/or focus stack to capture more of the subject in focus.Compare macrographs, photomicrographs, and microphotographs. Shooting further away makes you less likely to cast a shadow on your subject or (if it’s a live subject) scare it away.Ĭompared to shorter lenses, longer lenses also have a shallower depth of field. So longer lenses allow you to shoot further away from your subject. The longer the lens, the greater its working distance. the distance from the sensor to the subject.) (Working distance is sometimes confused with minimum focusing distance, i.e. the allowable distance between the front of your lens and your subject. However, they will have a different working distance – i.e. Lenses of different focal lengths can have the same magnification. At this ratio your subject appears as large on the sensor as it does in reality. If you want that ‘life size’ effect, look for lenses with at least a 1:1 magnification ratio. can focus relatively close up) compared to other similar lenses, they may not allow you to get as close to your subject as you would like. While many non-macro lenses have a relatively short focusing distance (i.e. One of the key factors to consider when choosing a macro lens is the magnification ratio. It depends largely on what you want to achieve, but here are the key features to look for. ![]()
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