Converting HD-SDI output to analog video for use with older cameras and monitors

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

2007Video Assist and Video Accessories forum

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

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

The F900 camera lacks HD-SDI output and requires a separate downconverter to produce analog video signals.
The F900R offers an optional board that provides SD output through a BNC connector, but this is an expensive add-on that not all rental companies equip their cameras with.
AJA and Decimator 2 by Redbyte are mentioned as potential downconverter solutions, though availability and reliability varied across different deployments.
Renting a downconverter from a rental house rather than purchasing one is often more cost-effective and practical for occasional HD shooting work.
The optional SD output board on the F900R occupies a precious BNC connector on the camera body, creating trade-offs in connectivity.

Experiences with AJA converters included power cable and adapter failures across multiple units on different projects.
The F900R's optional analog output board availability depends on the specific rental company's inventory and configuration choices.
Discussion does not clarify whether the Decimator 2 is compatible with all HD-SDI sources or specific camera models.
The thread predates more modern conversion solutions and reflects 2007-era equipment availability.