Zeiss LWZ.3 Motor Bracket Install Guide


This kit includes a Motor Mount (2 screws), Heden M26T Eccentric, and Zoom Gear Extension (8 screws). Installation is simple and only requires a single phillips head screw driver.


Remove the rear cap to allow the zoom gear to slip over the lens body. You can handle that, right?


Gently lower the zoom gear over the original iris and zoom gear, into position on the zoom ring . Keeping it perfectly straight is critical. If the Zoom Gear isn't straight, it'll get jammed. 


Insert and tighten all eight screws provided with the Zoom Gear. 

Align Motor Mount at the top of the lens, between the two "ZEISS" badges. Insert and tighten two screws provided with the Motor Mount. 

Install and align Heden Motor with new Zoom Gear Extension ring. Adjust eccentric ring to snug Heden Motor gear up to the new Zoom Gear. Be careful not to position the Heden Motor too close as this may cause excessive pressure on the Motor Mount and misalignment. 


Duclos Lenses has developed this product with the support and approval of the Original Lens Manufacturer. Therefor, the factory warranty is FULLY maintained. However, as part of our agreement with the Original Lens Manufacturer, we ask that you process all warranty repairs through Duclos Lenses should the need arise. This allows us to monitor the results of our products as well as provide valuable feedback to the Original Lens Manufacturer. For additional questions, warranty or general service, please contact service@ducloslenses.com.


Duclos Lenses takes great pride in their product designs, almost all of which are designed in-house. Manufacturing takes place either in-house, or in the hands of our trusted specialists including a range of professionals in the field of opto-mechanical manufacturing and aerospace fabrication. Products that bear our name represent the highest quality in the motion picture lens industry.



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This product qualifies for financing, either through the manufacturer or through one of our partner financing firms. Head on over to our financing details page today for additional information.



Duclos Lenses sets itself apart from the competition by actually knowing and understanding the products that we sell. We genuinely want all of our customers to receive the absolute best products possible. It's because of this that we offer two years of free basic maintenance with every new lens purchased from Duclos Lenses. Click here for more information.



Express shipping... for FREE!
Yes, free. This product will ship out Express by FedEx with full insurance and tracking at no additional charge. Applies to all domestic orders.



Duclos Lenses is committed to providing the best possible products to our customers. Unlike the competition, our technicians have the knowledge and tools to check every single lens that we offer. This happens once when new products arrive from the manufacture and once again before they ship out. This ensures that our customers are only receiving the best of the best. Yet another reason Duclos Lenses is the premier destination for motion picture lenses.