Novoflex CASTEL-MICRO is a motorised camera rail with a control unit, developed for advanced applications in photography, metrology and science. The rail has a travel range of 100 mm and a minimum step size of just 0.2 micrometres. It comes with an Arca-compatible quick-release mount and an easy-to-use touchscreen controller.
Exceptional precision for macro photography and focus stacking
At magnifications from 2:1 up to 50:1, manual focusing becomes extremely difficult and, in some cases, practically impossible. Even with a high-precision focusing rail, placing the plane of focus exactly where it is needed can be challenging.
CASTEL-MICRO is designed for this kind of work. The motorised rail moves the camera through a 100 mm range in steps as small as 0.2 micrometres. This provides the control needed for highly precise focusing and advanced focus stacking. The maximum load in a vertical position is 4 kg.
Touchscreen controller with preset modes
All settings are made using the included touchscreen controller. Several preset operating modes are available:
Step and Picture Mode
In this standard mode, you enter either the distance to move between exposures or the number of exposures you want to take. Based on the selected magnification and aperture, the system calculates the required number of images or step size.
Continuous Mode
A dedicated mode for situations where the subject or camera is moving. Very short exposure times or flash photography are recommended for the best results.
Bellows Mode
A mode designed for use with the CASTBAL-PRO bellows. Because the bellows are specifically designed for CASTEL-MICRO, you can choose whether to adjust the front or rear standard. The function works in a way similar to autofocus control in a lens, allowing you to create image sequences in which the plane of focus moves step by step for focus stacking.
Powered by a power bank or mains adapter
The controller is powered by the included mains adapter for reliable operation in the studio. For mobile use, it can instead run from a suitable 12 V power bank (not included), allowing you to work without access to mains power. This also makes it suitable for location work.
Compatible with the Novoflex Q system
CASTEL-MICRO is compatible with the Novoflex Q system, which includes tripods, mounts, rails and other accessories. The camera attaches to an Arca-compatible quick-release mount. On the underside, there is an Arca-compatible profile as well as standard 3/8" and 1/4" threaded sockets.
What’s included
- CASTEL-MICRO motorised camera rail
- Control unit
- Network cable, 2 metres
- AC adapter

Novoflex has manufactured camera and studio accessories since 1948. Its products are known for their high-quality materials and construction, with functionality and design shaped by photographers’ practical needs. This has made Novoflex a valued choice among professional photographers worldwide. Most of its products are manufactured at the company’s factory in Memmingen, Germany.