Many of us participate in video conferences several times a week, making the convenience of a webcam—as opposed to other options—paramount. I produce most of my live training with a webcam because the quality delta between a webcam and other options is negligible when presented in postage-stamp-sized videos. But what setup should you use for a really important conference or a call that will be distributed to many viewers live or on demand? That’s where things get interesting.
Such was the case for a recent interview with marketing personnel from BaishanCloud, a leading global cloud data service provider with more than 500 points of presence in China. The conversation focused on best practices for live streaming and global distribution and involved technologies like hardware H.264/H.265 encoders, QoS and QoE, and multiple CDN delivery.
Unfortunately, I was in the middle of shooting some video tutorials on the ATEM Mini Pro and my office was a mess, so I couldn’t use my normal webcam-based setup. First, I tried the embedded webcam on my Mac display, but I was unable to make the exposure work. Specifically, I was lighting the training set with LCD lights, and the Mac webcam always seemed a touch brighter than I wanted. I tried reducing the intensity of the light panels, but the webcam kept compensating by boosting the gain.
I switched to my Logitech C922 Pro Stream webcam and got the same result: overexposure to an almost garish level. To be clear, both webcams have been serviceable in the past, but something about the lights I set up for the training shoot was freaking them out. We actually filmed a couple of takes with the Logitech webcam, but when the BaishanCloud marketing folks started editing the recordings, they asked if I had another alternative.
Fortunately, I was shooting one camera angle of the ATEM tutorial with a Sony a6300 DSLR, which of course was connected to the ATEM Mini Pro. I tried connecting the ATEM Mini Pro output to the Mac Mini I was using for the Zoom conference, but the Zoom software didn’t recognize the input. I’m sure that was a glitch that I would have been able to correct, but rather than debug while others were waiting, I switched to a
solution I knew would work: the Epiphan AV.io 4K, which is my go-to USB capture device.
I connected the a6300, AV.io, and Mac Mini, and Zoom recognized the AV.io immediately. The quality improvement was staggering, compared not only to the overexposed output from the webcams but to most other webcam output I’ve seen in the past. After re-recording the interview, my host, Evelyne Kuo, took a frame grab for the company’s marketing purposes. She sent a copy for my review, and I was impressed with the quality of her video. I asked about the source and, not surprisingly, learned that they were using a Sony a6400 DSLR.
Note that using a DSLR instead of a webcam is more technically challenging, particularly if you like to customize exposure-related settings such as ISO, shutter speed, and aperture, as I do. Looking at the image now, it’s a bit darker than I would have liked, which often happens when you’re rushed when setting up your lighting and exposure. Unless you’re very comfortable with camera operation, you may be better off with a webcam. However, if your boss or a co-worker has to look good on camera, and you can drive the camera (or have someone drive the camera for you), a DSLR could be the perfect option.
The bottom line is that some shooting conditions are so severe that a webcam simply won’t cut it; you need a device that offers more control. There are also times when video quality really matters, particularly when you’ll be one-half screen or even fullscreen. In both cases, a DSLR like the a6300 (or a6400) just might be the perfect solution. Or, find a DSLR that you can connect to your computer as a webcam. Although Sony offers a download that supposedly makes the a6300 work as a webcam, I couldn’t make it work when I tried in the past, so I just used the AV.io.
Using a DSLR instead of a webcam will typically produce better results, but it’s also more technically challenging. Note that the image of the author (left) is a little on the dark side.
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