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Any restrictions about how long you can keep it turned on? I tried to do this but found I'd need to flash the cam's firmware to override the 10min recording li

by mrkeen 4y ago

Any restrictions about how long you can keep it turned on? I tried to do this but found I'd need to flash the cam's firmware to override the 10min recording limit. (I read that cameras which can record longer are taxed as video cameras, so they're deliberately crippled)

formerly_proven 4y ago
Normally you can leave live view (768x512 resolution, 0.4 MP in this case, usually not much higher for modern cameras) running indefinitely. Besides the low resolution especially on older cameras the readout for live view will use pixel skipping to conserve power at the expense of quality. This is why "the pro streamers" don't use the live view image, but instead go the HDMI-to-UVC route using the camera's video mode.
- throwaway294566 4y ago
  Unfortunately most cameras do not provide "clean" HDMI output. That is, the HDMI output contains camera UI symbols like focus points, battery state, lighting, etc. Configuration options to disable those UI symbols are generally not available, at best one can disable some of them. A model with "clean" HDMI is usually more expensive and you have to explicitly look for it as a feature. Live view readout via USB is something that works far more often than HDMI.
  - formerly_proven 4y ago
    I’d expect pretty much any system camera from the last decade should include it
    - throwaway294566 4y ago
      You are definitely expecting something that the camera makers' market segmentation does not provide. If you need clean HDMI, you can buy a camera that has it, but I estimate only a quarter of currently available DSLRs do.
  - gsich 4y ago
    Most cameras do? Especially if bought in the last ~5 years. Nikon D750 also can do it, 2014.
  - philsnow 4y ago
    You can sort-of "clean" whatever output you get from your camera because the symbols are typically around the periphery. Adjust focus+zoom so that your subject is within the rectangle that doesn't have symbols, take the camera output and put it through OBS with a crop filter and you've got something that's clean.
borissk 4y ago
Did you read the article? The author's camera can't record video at all. He uses software that creates video from static images taken by the camera.
- rhapsodic 4y ago
revilotom 4y ago
Even on long video calls (1-2 hours) I haven't had any problems but have not tested anything longer than that.
BirAdam 4y ago
Magic Lantern will take care of that. To accomplish what the OP does, I use a USB HDMI in, a mini HDMI to HDMI cable, and Magic Lantern on my Rebel. It works well. Magic Lantern allows me to leave the camera in preview without overlays for indefinite time periods. It can also provide video this way, but heat can be an issue there…
- Xeoncross 4y ago
  Magic Lantern was a game changer that really helped expose thousands to amateur videography. The Canon 5D MkII was the start of a revolution (an to a lesser extend, the T3i+) and the Panasonic GH4 and then Sony Alpha lines really played a role in pushing those young people from hobby to actual product videos and commercials.
gsich 4y ago
Why recording limit? Leave it in live view, no need to record. Or is the HDMI output not active then? I don't think this tax applies anymore.
- SECProto 4y ago
  Live view turns itself off after a period of time. I believe with my Nikon it's 30min. For me, having to press the LV button twice an hour seemed more preferable than flashing the firmware.
  - gsich 4y ago
    Can be disabled
    - SECProto 4y ago
      Live view auto shutoff can be disabled? No it can't[1], not without modified firmware that either doesn't exist[2] or is only available from sketchy mega uploads[3]. There are other[4] hacky workarounds, but nothing clean. [1] https://www.reddit.com/r/Nikon/comments/c5wjg6/how_to_turnoff_autooff_timer_on_d3300/ https://www.reddit.com/r/Nikon/comments/c5wjg6/how_to_turnof... [2] https://www.reddit.com/r/Nikon/comments/hqp2wu/any_way_to_turn_off_auto_liveview_timer/ https://www.reddit.com/r/Nikon/comments/hqp2wu/any_way_to_tu... [3] https://www.youtube.com/watch?v=gKSY0eEC5gM https://www.youtube.com/watch?v=gKSY0eEC5gM [4] https://www.youtube.com/watch?v=jUrPd4b22Y4 https://www.youtube.com/watch?v=jUrPd4b22Y4
      - gsich 4y ago
        You forgot to specify what camera you use. No need to extrapolate from your camera to all Nikons.
        SECProto 4y ago
        I said "with my Nikon". You said definitively that it "can be disabled". Your statement was incorrect - you were the one extrapolating.

by mrkeen 4y ago

formerly_proven 4y ago

Normally you can leave live view (768x512 resolution, 0.4 MP in this case, usually not much higher for modern cameras) running indefinitely. Besides the low resolution especially on older cameras the readout for live view will use pixel skipping to conserve power at the expense of quality. This is why "the pro streamers" don't use the live view image, but instead go the HDMI-to-UVC route using the camera's video mode.

throwaway294566 4y ago
Unfortunately most cameras do not provide "clean" HDMI output. That is, the HDMI output contains camera UI symbols like focus points, battery state, lighting, etc. Configuration options to disable those UI symbols are generally not available, at best one can disable some of them. A model with "clean" HDMI is usually more expensive and you have to explicitly look for it as a feature. Live view readout via USB is something that works far more often than HDMI.
- formerly_proven 4y ago
  I’d expect pretty much any system camera from the last decade should include it
  - throwaway294566 4y ago
    You are definitely expecting something that the camera makers' market segmentation does not provide. If you need clean HDMI, you can buy a camera that has it, but I estimate only a quarter of currently available DSLRs do.
- gsich 4y ago
  Most cameras do? Especially if bought in the last ~5 years. Nikon D750 also can do it, 2014.
- philsnow 4y ago
  You can sort-of "clean" whatever output you get from your camera because the symbols are typically around the periphery. Adjust focus+zoom so that your subject is within the rectangle that doesn't have symbols, take the camera output and put it through OBS with a crop filter and you've got something that's clean.

borissk 4y ago

Did you read the article? The author's camera can't record video at all. He uses software that creates video from static images taken by the camera.

rhapsodic 4y ago

revilotom 4y ago

Even on long video calls (1-2 hours) I haven't had any problems but have not tested anything longer than that.

BirAdam 4y ago

Magic Lantern will take care of that. To accomplish what the OP does, I use a USB HDMI in, a mini HDMI to HDMI cable, and Magic Lantern on my Rebel. It works well. Magic Lantern allows me to leave the camera in preview without overlays for indefinite time periods. It can also provide video this way, but heat can be an issue there…

Xeoncross 4y ago
Magic Lantern was a game changer that really helped expose thousands to amateur videography. The Canon 5D MkII was the start of a revolution (an to a lesser extend, the T3i+) and the Panasonic GH4 and then Sony Alpha lines really played a role in pushing those young people from hobby to actual product videos and commercials.

gsich 4y ago

Why recording limit? Leave it in live view, no need to record. Or is the HDMI output not active then? I don't think this tax applies anymore.

SECProto 4y ago
Live view turns itself off after a period of time. I believe with my Nikon it's 30min. For me, having to press the LV button twice an hour seemed more preferable than flashing the firmware.
- gsich 4y ago
  Can be disabled
  - SECProto 4y ago
    Live view auto shutoff can be disabled? No it can't[1], not without modified firmware that either doesn't exist[2] or is only available from sketchy mega uploads[3]. There are other[4] hacky workarounds, but nothing clean. [1] https://www.reddit.com/r/Nikon/comments/c5wjg6/how_to_turnoff_autooff_timer_on_d3300/ https://www.reddit.com/r/Nikon/comments/c5wjg6/how_to_turnof... [2] https://www.reddit.com/r/Nikon/comments/hqp2wu/any_way_to_turn_off_auto_liveview_timer/ https://www.reddit.com/r/Nikon/comments/hqp2wu/any_way_to_tu... [3] https://www.youtube.com/watch?v=gKSY0eEC5gM https://www.youtube.com/watch?v=gKSY0eEC5gM [4] https://www.youtube.com/watch?v=jUrPd4b22Y4 https://www.youtube.com/watch?v=jUrPd4b22Y4
    - gsich 4y ago
      You forgot to specify what camera you use. No need to extrapolate from your camera to all Nikons.
      - SECProto 4y ago
        I said "with my Nikon". You said definitively that it "can be disabled". Your statement was incorrect - you were the one extrapolating.