When I have my camera (a Canon 6D Mark II) in AF mode, I can't take pictures (nothing happens when I click the shutter button) while using the viewfinder. I can take pictures using the screen though just fine. This happened after I sent my camera to a workshop for fixing another issue. Disconnect the camera from the computer. Quit Lightroom Classic and restart the computer. Open Lightroom Classic. Reconnect the camera. Turn on the camera and try tethered shooting. 5. Put an empty memory card in the camera, especially if you're using a Nikon camera. 6. Try a different USB cable and USB port. All forums Canon EOS-1D / 5D / 6D Talk Change forum. 6D Auto ISO Works in Live View but not through Viewfinder: 1: Work for us; Advertise with us; FAQ button to turn on the menu screen. 3. Press the to select the [ ] tab. 4. Select the [AF method], then press . 5. Select the [Quick mode], then press . Using [Quick mode], although you can focus the target subject quickly, the Live View image will be interrupted momentarily during the AF operation. Feb 17, 2019. #4. Disable the auto-focus on the lens (the MF/AF switch) and test the camera. If the camera is in "One Shot" focus mode *and* if auto-focus is enabled, then the camera will refuse to take a shot until it can confirm that it was able to achieve focus at your selected AF point (or at any AF point if you enable all AF points). If Product Expert. Options. 05-29-2022 06:43 PM. Greetings natalyromero, If Live View Shooting is enabled in the camera's menu then let's press the small camera icon that's located towards the right of the viewfinder to enable the Live View shooting function when the camera is ready to take a picture. Set the lens focus mode switch to . Turn the camera. Set the Live View shooting/Movie shooting switch to < > . Press the < > button to display the live view image on the LCD monitor. Select an AF point. When a face is detected, the < > AF point appears over the face. If multiple faces are detected, < > is displayed. The benefits of Live View include the ability to: • preview the exact focus and depth-of-field at the working aperture. • magnify specific portions of the image at 5X or 10X for critical focusing. • easy viewing and composing when cameria is tripod mounted, even with Tilt-Shift lenses. If that is true Canon severely crippled the 6D. Probably true. No mention of the "Hybrid CMOS AF" like the 650D. I wouldn't exactly term that as "crippled" though. DSLR autofocus in video is in its infancy and still a work in progress. Canon decided it better to just pass at this point rather than add a system that's "not ready for prime-time." I'm shooting remote with and iPhone 8 running the Canon app over WiFi. Live view. Manual mode. 100-400mm Zoom Canon L lens on manual focus. The flash works with a Canon Speedlite 580. But it doesn't fire with a KuangRen KX-800 macro twin lite. The KX-800 has only one contact pin on its hot shoe. It works fine in view-finder mode, but not in RTb0K.