Sony PDWF350 can be used in an SD multi-camera environment but some external conversion gear is likely needed (downconversion, frame syncs depending on the switcher used, etc.). Panasonic HDX900 provides more flexibility in terms of direct outputs on the camera: HD-SDI, SDI and composite, and the downconverted output can be letterboxed, cropped or squeezed (XDCAM HD camcorders permit SD aspect ratio conversion only on disc playback, not on live camera output). When using either camera for multicam, you’ll have to deal with video out, return video, genlock, audio, time code, intercom, power, timing into a switcher, etc.
Several of my clients use HDWF900s in multicam configuration with the Evertz ECAS fiber system; one of them recently added a significant number of PDWF350 and another has added Panasonic. The Evertz system is great because it takes all of the video, audio, intercom, time code, genlock, control and power cables that typically run to and from a camcorder and puts them on a single fiber cable to a base station. Not cheap, but clean, reliable, and simple.
Feel free to contact me if I can provide any additional information.
Regards.
Dave Anderson
Digital Cinematography Manager
Roscor Corporation
http://www.roscor.com
(P) 847-299-8080 Ext. 1354