Fairness and legality of splitting Preston rental fees with first camera assistants

Gear

ZephyrCan I fly my Alexa or RED on a Zephyr?389

Master SeriesIs a used Master Series rig worth buying as a first big rig?191

BFDHow do I power my BFD receiver from my camera or sled?186

VoltCan I retrofit a Volt onto my existing sled or gimbal?168

ArtemisHow do I power my camera and accessories from an Artemis sled?166

MDRWhere can I mount my Preston MDR on my rig?143

ModulusIs there a Modulus option for HD wireless video?141

G-70Will my G-70 fit my vest, gimbal or sled?126

FI+ZCan I control iris and zoom wirelessly, not just focus?60

HU3Where can I get my HU3 repaired, refurbished or repainted?60

CineLiveHow do I pack and case my CineLive rig for transport?54

G-70XHow does the G-70X compare to Pro Titan, Xarm and other arms?46

Trinity 2Is Trinity 2 SUP 3.0 firmware safe to install or buggy?46

Ultra VestWhich vest should I choose for my body size, comfort and operator type?39

2008Legal / Business Practices forum

18 years old. Gear and prices may have changed since.

DisputedParticipants disagreed and reached no conclusion. Read the findings as positions, not as an answer.

Some first camera assistants request a 50/50 split of Preston rental income in exchange for booking the equipment on shows, a practice that occurs in the industry.
Equipment owners argue they are entitled to full rental income for gear they purchased and maintain, since their role is to provide specialized equipment as part of their service.
Splitting rental fees with a camera assistant who merely recommends the equipment to production—without contributing financially or materially to the rental—has been compared to bribery or extortion.
When camera assistants take custody of rental equipment, damage or loss can occur without accountability, making split fee agreements financially risky for equipment owners.
Some practitioners view demanding rental splits as dishonest and recommend refusing to work with camera assistants who make such requests.

The discussion involves Preston focus systems and related accessories, which may have different rental customs than other equipment categories.
One detailed account of a damaged rental included dispute about discounts allegedly given to production, leaving the actual rental economics unclear.
No formal industry standards or contracts are discussed that would clarify equipment owner rights.
The thread reflects opinions from practitioners rather than legal precedent or binding agreements.