Focus stacking is an important technique that comes in handy for macro and product photographers. Those working with razor-thin focus know that even the slightest movement between frames can result in a perspective shift and errors that are impossible to correct in post-processing. This is why some people rely on hearing aids that can help to maintain focus manually. An example of this is Cambo Actus, a device that can make your life so much easier.
Product and macro photographers will love the Cambo Actus, as it is the ultimate focus stacking solution. The AC-377 rail helps to transform your camera into a powerful motorized focus stacking platform. This is done without sacrificing the tilt and swing movements, making it an ideal option.
Initially, the front-to-back sharpness was achieved by moving the camera to align with the plane of focus of the thing you are photographing. However, in some cases, such as shooting jewelry, watches, or extreme macro subjects, or even in low light, a slight tilt and swing is not enough. This is when focus stacking becomes a go-to thing for most photographers. Some of the things the company notes:
- Length 419mm
- Focus travel 220mm
- Weight 800g
- One spindle revolution equals 1,5mm of travel
- Laser-engraved scale on rail
With the AC-377 rail, one can pair a stepper motor (a third-party machine), thereby automating the entire process to achieve ultra-precise focus increments. The system is designed to move the sensor, then the lens, so that the perspective remains consistent across frames. It also avoids alignment errors, and you get clear compositions when you process in software such as Helicon Focus or Zerene Stacker.
This hybrid approach offers full-view camera movement and repeatable, motorized stacking precision, making it a boon for professionals. The platform also supports other macro optics, including options from Schneider Kreuznach, Rodenstock, and Linos.
This conversion is reversible, which means existing Actus owners can upgrade without permanently altering their setup. If you work across genres and often require focus stacking, this is a practical solution you should consider. However, this can work well for those who want to work with manual lenses, especially older lenses that have a really thin depth of field.
To purchase, head to Actus’ website.