StackShot automates the movement of the rail and the triggering of the camera's shutter. So what does Cognisys have to offer the world of focus stacking? StackShot. Take picture, move the rail slightly, take a picture (ugh! Did I just bump the camera?), move the rail a little more, it is a fairly tedious process. If you've done this before you know it can be a slow and tedious task. There are more educational links about focus stacking at the bottom of the page. This movement slides the in-focus part of the image through the subject. The macro rail allows finely controlled movement of the camera to change the distance between the camera and the subject. Typically the camera's position is adjusted in relation to the subject of interest by using a macro-rail. You can move the camera, the subject, or change the distance between the lens and the camera. There are several different ways to create a stack of photos. With focus stacking we can create high magnification photos without the limited in focus area (Depth of Field) We do this by collecting several images with whatever depth of field our lenses will provide and digitally combine them to increase the in focus area. Anyone that has taken a close up photo knows that as the magnifcation gets larger the in focus area gets smaller. Wikipedia defines focus stacking as " a digital image processing technique which combines multiple images taken at different focus distances to give a resulting image with a greater depth of field (DOF) than any of the individual source images.
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