![]() ![]() StackShot’s simple user-interface makes the automation of the entire image collecting process for focus stacking very easy.Īccuracy: Step size adjustment from full length of the rail 100 mm down to 2 um. StackShot is an electronically controlled macro rail system that coordinates the movement of the macro rail and the triggering of the camera. Repeatable Collection of Images for Focus Stacking - StackShot If you want to take your focus stacking to the next level by adding a touch screen interface or two additional axis' of automated motion (subject rotation for example) check out the latest version of StackShot - the StackShot 3X, we also have a comparison of the two controllers. This is where StackShot comes in, it is an automated focusing rail for repeatably collecting images for focus stacking. Additionally, sub-millimeter steps are difficult at best. There is a lack of accuracy, reproducibility, speed, and precision. ![]() Unfortunately there are several drawbacks. ![]() These macro rails allow the distance to be adjusted and provide a crude manual method for taking the series of shots required for focus stacking. Most macro photographers are familiar with using a macro rail to adjust the camera’s position relative to the subject of interest. Ideally each of these images is taken at a fixed distance interval. The images are usually collected with a macro rail and combined using a software program such as Zerene Stacker or Helicon Focus. Focus stacking is the art of digitally combining a series of images with a narrow depth of field into a single image with an extended depth. How do photographers capture that stunning shot at high magnification and still have great depth of field? Enter focus stacking. Unfortunately macro photographs often suffer from a narrow depth of field. It brings to life detail that the human eye all too often misses. Macro-photography is a fascinating sub-set of the photographic world. With access to experts.StackShot - Automated Macro Rail for Focus Stacking Helicon may be better suited to larger subjects while Stackshot/Zerene is better suited to the smallest subjects. Stackshot and Zerene leave the lens focus ring as is and physically moves the camera instead. Helicon electronically twists the focus ring on the lens for each new exposure. Helican was full of bugs two years ago when I used it. Now run gimp on stk-filename.tif to make the final image. It's convenient to name stacked tifs as stk-filename.tif Now save as a single stacked *.tif, named what ever you like. Align and stack all tifs as per various GUI options. Now run Zerene again on all tifs (ZereneStacker.sh *tif). That command also deposits each *.tif file in the tiffs directory made above. ![]() That performs the same rawtherapee editing steps, as defined in the pp3 file, to each raw image in the stack, converting to *.tif on the fly. Rawtherapee-cli -o tiffs -p now.pp3 -t -Y -d -c. Save a *.pp3 file in the current directory, perhaps named as now.pp3 Edit any one raw image from the middle of the stack with rawtherapee. You now have N raw exposures in the stack all exposed and lighted identically. Zerene controls it all from that point on. Click the mouse appropriately to tell Zerene where those points are. My Nikor 105mm macro lens seems to like F8 best.ĭetermine closest focus point and the furthest. Use trial and error to determine the ideal manual exposure. Once all the various parts are wired together properly (takes some effort to figure it all out) I fire up:ġ) entangle tethered directly to the camera andĢ) Zerene Stacker, which has a GUI interface for controlling the rail-all of which I have mounted on a tripod in front of a light tent. I've worked with both Helicon focus and the two-part combination of a Stackshot rail paired with ZereneStacker. ![]()
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