04-20-2020 03:48 PM
Use the proper tool for the job. Not always a good idea to bandaide a tool to do what it wasn't designed to do.
Our self-described "filmmakers" and wannabe YouTube artistes can't really afford a proper video camera. Thus they are stuck with their overblown aspirations as they struggle to master the video capabilities of their T6, T5, or M50, often without bothering to download and use the full manual. I've frequently seen them get upset when offered real advice, so why bother?
Don't be so hard on them. We all have to start somewhere, and for most of us it is usually on the wrong foot.
I have no wish to discourage anyone from pursuing a dream. The problem that creeps in that many people do not have an action plan on how to achieve their dreams. They need to learn how to define a set of intermediate goals, to build a staircase to the top.
So, don't be so hard on them. They just need to be given better options, and pointed in a better direction.
04-20-2020 11:36 PM
It's similar but not exactly the same. If you shoot a 30 fps video @ 1/100s - your sensor is being scanned 30 times per second, exposing each pixel for 1/100s. It means the sensor will be idling ~70% of each second (while the ADC, CPU, etc will be working on transforming, encoding and storing your stream).
Shooting a long exposure makes the sensor work 100% of time. I.e. if you're shooting a 10 min long exposure - each photo site is "working" 10 min non stop. It's a huge difference.
10 min long exposure shots without proper cooling are extremely noisy (crazy noisy!). If you grab the first and last frames from a 10 min video (preferrably 4k / low compression) - you won't see much noise difference.
04-21-2020 09:19 AM
I see your theory and raise you another one: What causes all the heat is the *readout* of the sensor, not gathering light. The long exposure only does it when the shutter closes, while the video does it continuously.
Look, if it wasn't a problem, Canon would not have built a warning into the firmware! None of the still shooting modes have this warning.
04-21-2020 10:29 AM
"... if you're shooting a 10 min long exposure - each photo site is "working" 10 min non stop."
I realize you were just trying to make a point but in reality a 10 minute long exposure would be and is extremely rare. A 30 second exposure which most cameras can do from the factory is also rare albeit less rare. Unless a special situation most general photographers don't/won't do that long exposures.
04-21-2020 06:14 PM
@ebiggs1 it's not rare in astrophotography. You can't live without the bulb mode if you're into serious astro.
Besides astro - any landscape work involving 10 or 15 stop ND filter to smooth out water or sky can easily take a few minutes.
@kvbarkley I didn't mention anywhere the sensor is overheating from gathering light. It's all about how much actual work is done in the sensor vs other camera components. The heat can build up in the sensor or anywhere else. The sensor heat is leading to extra noise. It won't kill though - any modern camera is equipped with a thermal protection mechanism. I'm not aware of any firmware warnings telling "do not shoot a video longer than 30 min or do not do an exposure longer than ... minutes. The 30 minutes video limit is only related to the EU tax. Even the video-centric Panasonic GH cameras have it. To overcome the limit all modern cameras offer a clean HDMI output so they can be used with an external recorder for any period of time.
04-22-2020 01:09 AM
@kvbarkley Have you ever seen this warning? I don't exclude a possibility it will show up if you leave the camera under direct sunlight for an hour or two, and no matter if you do stills or video the camera will probably shut down anyway. It's not something we would call normal circumstances though.
@John_SD Quite a few multi-million dollar Hollywood movies were partially shot on the 5D series cameras. Iron Man, Mad Max FR, Capitain America, etc... Even the entire "House" season 6 finale. People behind those 5D cameras probably not as good filmakers as you, but I guess they could afford a proper video camera?
04-22-2020 04:40 AM
Quite a few multi-million dollar Hollywood movies were partially shot on the 5D series cameras. Iron Man, Mad Max FR, Capitain America, etc... Even the entire "House" season 6 finale. People behind those 5D cameras probably not as good filmakers as you, but I guess they could afford a proper video camera?
Professional movie makers do not stream video of 30 minutes or more they take multiple short clips and edit them together.
04-22-2020 09:07 AM - edited 04-22-2020 09:08 AM
If a professional burns up a camera they just grab another off the shelf.
Look, if you want to shorten the life of your camera, go ahead. Just don't complain about Canon quality when it happens.
04-22-2020 09:55 AM
@Ray-uk You're quouting me out of context. It was a reply to someone who claimed only n00bs are using stills cameras for video. I already told you why there is 30 min limit. Don't take my word for it - just google "why cameras have 30 minutes recordig limit".
@kvbarkley What make you think that youtube bloggers, some of them making millions in annual revenue, are not professionals? Do you have any confirmed stats how many people actually burnt their cameras while shooting videos? Like zero probably?
Cameras are tools. If you buy a camera and don't do anything with it because the usage is shortening its life - you're probably doing it wrong. Remember, every click shortens the life of your shutter Also, I didn't "complain" anywhere about Canon quality.