Focussing Devices
A motorized focus drive adds automatic control of your microscope's Z-axis, so the instrument can focus itself instead of relying on the operator turning the fine-focus knob by hand. It is the natural companion to a motorized XY stage — automated workflows need not only motorized X and Y axes but also automatic adjustment of the Z-axis. Clemex supplies Märzhäuser focus drives that mount onto the microscope's fine-focus knob for precise positioning in the third axis.
Automatic Z-axis control
Many automated microscopy tasks require not just motorized X and Y movement but also automatic adjustment of focus. A motorized focus drive supplements the microscope's existing Z-axis, driving the fine focus under software or controller control for very precise positioning in the third dimension.
Because it mounts onto the existing fine-focus knob, a manual microscope can be upgraded to motorized focus without replacing the instrument — an economical way to build a complete automated system. Model-specific versions are available for various microscope stands, alongside a universal clamp-on option, and the drive integrates with Märzhäuser controllers for coordinated XYZ automation.
Key features
- Retrofits existing microscopes by mounting onto the fine-focus knob — no need to replace the stand
- Very precise positioning in the Z-axis, the prerequisite for reliable autofocus and Z-stacks
- Model-specific versions for common microscope stands, plus a universal clamping option
- Integrates with Märzhäuser controllers for coordinated, automated XYZ movement
- Enables economical, complete automated systems built on your current microscope
Frequently Asked Questions
What does a motorized focus drive do?
It motorizes the microscope's Z-axis (the fine focus) so focusing can be controlled automatically by software or a controller instead of by hand.
How does it attach to my microscope?
The focus drive is positioned on the microscope's fine-focus knob. Model-specific versions exist for various stands, and a universal version attaches with a clamp.
What is it used for?
Automated focusing, Z-stacking (acquiring images at successive focus depths) and extended-depth-of-field imaging within automated acquisition workflows.
Does it replace my microscope's manual focus?
No. It supplements the existing Z-axis, so you can still focus manually. It simply adds automatic control on top.
Will it fit my microscope?
Dedicated versions are made for various microscope stands, and a universal clamp-on option covers others. The correct part depends on your specific model, which our specialists confirm.
Want to add automated focus to your microscope? Our specialists help you match the right focus drive to your stand and workflow.