Feelworld L3 PRO Video Switcher
The Feelworld L3 PRO Video Switcher is a video mixer for livestreams and multi-camera recordings. Compared to the L3, this PRO version adds four extra 3G-SDI inputs. This lets you connect SDI cameras as well as HDMI cameras, with signals up to 1080p60.
In total it has nine inputs. Besides the four SDI ports, there are two HDMI 2.0 inputs that accept 4K and two HDMI 1.3 inputs. A USB port takes a UVC camera or media files. The two HDMI outputs carry the program feed and a multiview, so you can see all sources at once.
You switch with CUT, AUTO or the T-bar, with a choice of 16 transitions. You also get eight PIP modes, scaling and cropping, chroma key, luma key and a logo overlay. You can quickly recall four preset and four custom scenes, and macro keys run a series of actions in one go.
On a computer, the L3 PRO works as a UVC source for your streaming software via USB-C. Through the network port you can also stream directly using RTMP, on up to four channels at the same time. You record the program feed as MP4 to a USB drive of up to 2 TB. The joystick and zoom buttons control up to four PTZ cameras via IP VISCA.
The audio mixer handles up to seven channels: embedded HDMI and SDI audio, sound from media files and two mic/line inputs on 3.5mm. Audio follow video makes the sound switch along with the picture. The video delay stays under 3 frames. You power the switcher with the supplied adapter or via USB-C PD, and it weighs about 1 kilogram.
