Helicon FB Tube automatically shifts the focus by one step with each shot thus producing a stack of images of unlimited length that can be rendered into a fully-focused image. Helicon FB Tube is an extension tube with integrated electronic microcontroller designed to enable automated focus bracketing in single or continuous shooting modes. Tethered photography makes focus stacking more accurate, reproducible, and higher quality than can be achieved with manual shots. Tethered photography for Canon and Nikon DSLR cameras: automates focus (DoF) bracketing, which allows precise and uniform steps, advanced exposure bracketing and time-lapse shooting-even all these combined if necessary. These read-only APIs enable you to retrieve images from your stack and manipulate them to deliver modified images to your digital. Then you can use Helicon Focus to blend all the sharp areas together and Focus stacking software: a post-processing technique that extends the depth of field in your photographs.To use this technique, you take several images of the same scene, focusing your lens on a different part of the object for each shot.
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