![]() Whereas most macro lenses can also be used as normal lenses (while you can focus on a very close subject, you can also focus on subjects all the way out to infinity) the MP-E 65mm can ONLY focus very very close. ![]() Since the penny has a diamter of 19mm that means that the image on the sensor would be so large that the penny would barely fit in the frame in the wide direction and would actually be slightly cropped off in the narrow direction - that's pretty close.Ĭanon has one specialty macro called the MP-E 65mm. The sensor on a Canon EOS DSLR with an APS-C size sensor (camera's that can use EF-S lenses) is roughly 23mm wide by about 15mm tall (using liberally rounded values). At a 1:1 scale the image on the sensor would be as large as the object in real life. if you photographed a penny at 1:3 scale it would mean the size on the image sensor is 1/3rd of 19mm or about 6.3mmįor a prime lens, the close focusing distance is usually even better. That is a comparison of the size of the image on the actual imaging sensor as compared to it's size in real life. ![]() usually that means they can get close enough to a subject to allow capture at about 1:4 or even 1:3 scale. Some zoom lenses indicate that they are also 'macro' lenses. The normal reason for selecting a 'macro' lens is to do close-up photography (even though the lens can also be used for subjects which aren't close). there's no zooming tighter or wider).įor a 'Macro' lens (and macro lenses can be either zoom or prime) the lens is designed to allow a closer focusing distance than most lenses. For a 'Zoom' lens, you get to change the focal length.įor a 'Prime' lens, the focal length is fixed (e.g.
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