4 ms·

SDI is definitely still used, and still found on professional monitors. I think locking is not worth it for consumer-grade equipment, where cable reconnexions a

SDI is definitely still used, and still found on professional monitors. I think locking is not worth it for consumer-grade equipment, where cable reconnexions are rare, but some push-in connectors are better than others. For example, VGA without screws is a bad idea.

dylan604 4y ago
Of course SDI is still used: there's nothing better! The only update was to minify it so we now have SDI on smaller gear. Smaller, but still with twist lock. When it comes to professional cameras, I don't want an HDMI cable any where near my setup. Reminds me of the Technic 1200s. Built in the 70s, nearly perfect on first release, no major updates required. Only small tweaks with no bearing to core functionality. I feel the same way about SDI. Feature complete!
- anikom15 4y ago
  I agree there’s nothing better. What theoretical bandwidth can SDI support? A typical BNC (50 Ω) goes up to around 6 GHz while precision coax connectors (screw-on) can be up 67 GHz+. The ‘low’ performance of BNC is primarily blamed on the twist-lock.
  - dylan604 4y ago
    We're up to 12G and 24G now which handles the higher resolution videos like 4k/8k. https://en.wikipedia.org/wiki/Serial_digital_interface https://en.wikipedia.org/wiki/Serial_digital_interface Also, SDI uses 75ohm cable
- bradknowles 4y ago
  SDI can give you excellent quality video over long cable runs, and it's dead simple to cut and terminate your own cable from a spool. Did that more than once at DevOpsDays conferences here in Austin. Very sturdy cable, too -- very resistant to damage. And if you need to convert to/from something else (like HDMI), then BlackMagic has some awesome converter boxes.
  - dylan604 4y ago
    >Very sturdy cable, too -- very resistant to damage. depends on the cable, but yeah, it can be. for permanent installs into post facilities, there is a much smaller cable that still qualifies for the higher bandwidth signals, but much thinner cable. it is lighter, easier to pull, and requires so much less space in the racks. this is convenient when cabling patch panels, routers, etc. it does tend to not hold up as well if you have to bend past 90 degrees though. >And if you need to convert to/from something else (like HDMI), then BlackMagic has some awesome converter boxes. you can also go to cat6 which is even cheaper and more readily available for HDMI over long distance.

dylan604 4y ago

Of course SDI is still used: there's nothing better! The only update was to minify it so we now have SDI on smaller gear. Smaller, but still with twist lock. When it comes to professional cameras, I don't want an HDMI cable any where near my setup. Reminds me of the Technic 1200s. Built in the 70s, nearly perfect on first release, no major updates required. Only small tweaks with no bearing to core functionality. I feel the same way about SDI. Feature complete!

anikom15 4y ago
I agree there’s nothing better. What theoretical bandwidth can SDI support? A typical BNC (50 Ω) goes up to around 6 GHz while precision coax connectors (screw-on) can be up 67 GHz+. The ‘low’ performance of BNC is primarily blamed on the twist-lock.
- dylan604 4y ago
  We're up to 12G and 24G now which handles the higher resolution videos like 4k/8k. https://en.wikipedia.org/wiki/Serial_digital_interface https://en.wikipedia.org/wiki/Serial_digital_interface Also, SDI uses 75ohm cable
bradknowles 4y ago
SDI can give you excellent quality video over long cable runs, and it's dead simple to cut and terminate your own cable from a spool. Did that more than once at DevOpsDays conferences here in Austin. Very sturdy cable, too -- very resistant to damage. And if you need to convert to/from something else (like HDMI), then BlackMagic has some awesome converter boxes.
- dylan604 4y ago
  >Very sturdy cable, too -- very resistant to damage. depends on the cable, but yeah, it can be. for permanent installs into post facilities, there is a much smaller cable that still qualifies for the higher bandwidth signals, but much thinner cable. it is lighter, easier to pull, and requires so much less space in the racks. this is convenient when cabling patch panels, routers, etc. it does tend to not hold up as well if you have to bend past 90 degrees though. >And if you need to convert to/from something else (like HDMI), then BlackMagic has some awesome converter boxes. you can also go to cat6 which is even cheaper and more readily available for HDMI over long distance.