HD-SDI internal wiring in camera stabilizers incompatible with progressive video formats

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2024Sled forum

HD-SDI connections on camera stabilizers support a maximum bitrate of 1.485Gbit/s and can only handle interlaced video formats like 1080i, not progressive formats like 1080p
A Blackmagic HDMI-SDI converter may automatically output a 3G-SDI signal at 2.970Gbit/s when receiving progressive video input, exceeding the bandwidth capacity of HD-SDI wiring and causing signal degradation
Using a separate monitor with HDMI-to-SDI cross-conversion capabilities can work around bitrate limitations in stabilizer internal SDI connections

This limitation applies specifically to stabilizers with HD-SDI internal wiring, such as upgraded Glidecam X-45 units
The workaround described uses external equipment rather than solving the fundamental wiring limitation
Converter configuration options were limited to Level A or Level B in the reported case