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Please take care when using your DSLRs for video. Often the sensors are not adequately cooled for long term usage as a video camera (>30m). You have the poten

Please take care when using your DSLRs for video. Often the sensors are not adequately cooled for long term usage as a video camera (>30m). You have the potential to damage the sensor if it is not designed for continuous use and doesn't have proper thermal protection. Newer cameras will shut down if they get too hot, or have limits to how long you can run in video mode. Stackoverflow discussion: https://video.stackexchange.com/questions/21932/can-continuous-video-capture-damage-my-dslr#:~:text=It%20depends%20on%20the%20camera,heat%20as%20they%20capture%20images.&text=Most%20modern%20cameras%20have%20temperature,as%20you'd%20like%20to https://video.stackexchange.com/questions/21932/can-continuo....

docuru 6y ago
That’s the first thing comes in my mind. I guess this post wasn’t created by someone loves their DSLRs
rayshan 6y ago
Did not consider this, thanks so much! I need mine for photography so need to source another cam just as a webcam.
paulgerhardt 6y ago
Old wives tale. Even the stackoverflow answers say as much. Most of the thermal ramping occurs in the first five minutes and then stabilizes after cache is exhausted. As all these dslr’s allow you to record 29m50s videos back to back all day long it’s also indicative that it’s not a big enough issue in returns to warrant addressing in their firmware. As you’re not writing to the SD card, hdmi passthrough should yield an overall lower operating temperature after an hour than writing to the SD card when recording video after even 10 minutes. I tried getting to the source of this rumor. Didn’t find one particular origin, just speculation amongst Redditors and Twitch users about the 30 minute limit and bypassing it with the Nikon or Canon firmware mods will void your warranty. It will however introduce more noise. Particularly at higher ISO’s. Astronomy photographers (a major driver of the firmware hacks in the first place - see “Nikon stareater bypass”) have cooling solutions available there too.
- myself248 6y ago
  Correct me if I'm wrong, but the 30m limit is due to some taxes or regulations on "video cameras", right? Edit: Yup. https://petapixel.com/2012/05/21/30-minute-video-limit-in-digital-cameras-may-be-on-its-way-out/ https://petapixel.com/2012/05/21/30-minute-video-limit-in-di... > At present [2012], digital cameras' video cuts off after 30 minutes to avoid them being classified as video cameras (which attract 5.4% duty because they are considered to be video recorders
  - koolba 6y ago
    Reminds me of those light trucks that get ripped apart to create passenger cars. EDIT: I had it backwards. The tax is on trucks and it gets circumvented by importing them as passenger cars: https://en.wikipedia.org/wiki/Chicken_tax https://en.wikipedia.org/wiki/Chicken_tax
    - triangleman 6y ago
      Nah, light trucks are in a whole other category (or exempt, I don't know) in "CAFE" standards, so that's why you see so many SUV's in America.
  - Ductapemaster 6y ago
    That's a really interesting piece of knowledge — thank you for sharing!
  - fomine3 6y ago
    Economic Partnership Agreement between Japan and EU had signed that abolishes the video camera tax. Most camera brands are in Japan but I don't know how many cameras made in Japan. This Japanese article describing the agreement especially for cameras. I can't find English articles like this. https://av.watch.impress.co.jp/docs/series/zooma/1171774.html https://av.watch.impress.co.jp/docs/series/zooma/1171774.htm... This is the original agreement text that's too long didn't read. https://www.mofa.go.jp/ecm/ie/page4e_000875.html https://www.mofa.go.jp/ecm/ie/page4e_000875.html
- 6y ago
jabroni_salad 6y ago
It is the actual recording mode that generates the heat. Transcoding, putting stuff in the buffer, saving to storage, etc. With the HDMI-out, you are just sharing the viewfinder and offloading all those tasks to your computer, so heat is not really an issue unless your room is extremely hot to begin with. The sony a5100 is really popular with twitch streamers right now because it will run all day in this mode and you can turn off all of the UI elements to get a 'clean' output. You don't get all the cool cinema features but you do get a camera that is better than just about any webcam.

docuru 6y ago

That’s the first thing comes in my mind. I guess this post wasn’t created by someone loves their DSLRs

rayshan 6y ago

Did not consider this, thanks so much! I need mine for photography so need to source another cam just as a webcam.

paulgerhardt 6y ago

Old wives tale. Even the stackoverflow answers say as much. Most of the thermal ramping occurs in the first five minutes and then stabilizes after cache is exhausted. As all these dslr’s allow you to record 29m50s videos back to back all day long it’s also indicative that it’s not a big enough issue in returns to warrant addressing in their firmware. As you’re not writing to the SD card, hdmi passthrough should yield an overall lower operating temperature after an hour than writing to the SD card when recording video after even 10 minutes. I tried getting to the source of this rumor. Didn’t find one particular origin, just speculation amongst Redditors and Twitch users about the 30 minute limit and bypassing it with the Nikon or Canon firmware mods will void your warranty. It will however introduce more noise. Particularly at higher ISO’s. Astronomy photographers (a major driver of the firmware hacks in the first place - see “Nikon stareater bypass”) have cooling solutions available there too.

myself248 6y ago
Correct me if I'm wrong, but the 30m limit is due to some taxes or regulations on "video cameras", right? Edit: Yup. https://petapixel.com/2012/05/21/30-minute-video-limit-in-digital-cameras-may-be-on-its-way-out/ https://petapixel.com/2012/05/21/30-minute-video-limit-in-di... > At present [2012], digital cameras' video cuts off after 30 minutes to avoid them being classified as video cameras (which attract 5.4% duty because they are considered to be video recorders
- koolba 6y ago
  Reminds me of those light trucks that get ripped apart to create passenger cars. EDIT: I had it backwards. The tax is on trucks and it gets circumvented by importing them as passenger cars: https://en.wikipedia.org/wiki/Chicken_tax https://en.wikipedia.org/wiki/Chicken_tax
  - triangleman 6y ago
    Nah, light trucks are in a whole other category (or exempt, I don't know) in "CAFE" standards, so that's why you see so many SUV's in America.
- Ductapemaster 6y ago
  That's a really interesting piece of knowledge — thank you for sharing!
- fomine3 6y ago
  Economic Partnership Agreement between Japan and EU had signed that abolishes the video camera tax. Most camera brands are in Japan but I don't know how many cameras made in Japan. This Japanese article describing the agreement especially for cameras. I can't find English articles like this. https://av.watch.impress.co.jp/docs/series/zooma/1171774.html https://av.watch.impress.co.jp/docs/series/zooma/1171774.htm... This is the original agreement text that's too long didn't read. https://www.mofa.go.jp/ecm/ie/page4e_000875.html https://www.mofa.go.jp/ecm/ie/page4e_000875.html
6y ago

jabroni_salad 6y ago

It is the actual recording mode that generates the heat. Transcoding, putting stuff in the buffer, saving to storage, etc. With the HDMI-out, you are just sharing the viewfinder and offloading all those tasks to your computer, so heat is not really an issue unless your room is extremely hot to begin with. The sony a5100 is really popular with twitch streamers right now because it will run all day in this mode and you can turn off all of the UI elements to get a 'clean' output. You don't get all the cool cinema features but you do get a camera that is better than just about any webcam.