The Sony PXW-FS5 Digital Motion Picture Camera has a 3G HD-SDI output capable of outputting 1080/60P and an HDMI output capable of outputting 2160/30P. To get 2160/30P out of these video cameras, you must use the HDMI output.įigure 2. These 4K UHD video cameras can record internally in 4K but have HD-SDI outputs that are limited to 3G SDI signals. This is the case in my own workflows with Sony FS5 ( Figure 2, below) and X70 video cameras. The Blackmagic DeckLink 4K Extreme is a PCIe card that can capture 2160/60P over HDMI, HD-SDI, and even optical fiber.
These two 4K signals are common on Blackmagic video cameras, but have not gained widespread support among other manufacturers who rely on HDMI for 4K output.įigure 1. Ultra HD (UHD)/4K requires 6G for 2160/30P and 12G for 2160/60P workflows.
The 1.5G HD-SDI standard is limited to 1080/60i signals, so I recommend considering 3G HD-SDI as the minimum for modern workflows as it supports 1080/60P signals. HD-SDI can be used to transport HD and 4K signals, so be sure to select a capture card that can accept the resolution and frame rates that you intend to work with ( Figure 1, below). Whenever possible in my workflows, I prefer to use HD-SDI cables because they offer a secure BNC bayonet connection, introduce less delay in the signal workflow, and don’t interconnect with every other interconnected device, as HDMI does. When choosing a capture card, the two most common video inputs you need to consider are HDMI and HD-SDI. In this article, I am going to explain what features to look for when you navigate the wide selection of capture cards on the market today. Selecting a video capture card is one of the more complicated decisions you will make when you put together a live switching and streaming workflow.
0 kommentar(er)
