Sunset in Kruger

by MrFrench

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A macro lens' maximum magnification can only be achieved at minimum focus. So to get maximum magnification you must move the camera towards or away from the subject to focus a specific area of it. That is the main advantage of using a focus rail. In the case of stacking images, though, maximum magnification in every frame is probably of secondary ...


A lot would depend on whether you need continuous focus through the scene or have more discrete points of interest. A micrometer (geared) rail can make it very fast and easy to make sure that you have complete coverage of the depth of a scene with greater precision than manual focus simply because the adjusting mechanism is finer and the scale is linear. ...


A macro rail will let you perform fine compositional adjustments, rather than either moving the subject or camera and support - both of which are rather clumsy methods of adjusting composition when considering macro photography...

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