jessedacri

The main problem is the PCB circuit board on top of the CPU, sandwiched between that and the back casing.
It is utterly lunatic design or (more likely) on purpose.
The main CPU should have a thermal pad on top and direct contact to the chassis.
It is akin to Nvidia putting a second PCB on top of their graphics processor so it doesn't get into contact with the heat sink, and then telling gamers "sorry but your 2080 Ti only works for 20 mins of 4K Monster Hunter World then you have to go to 720p")
I find it hard to believe any engineer would be happy with this layout. The simplicity of the physics, your average 10 year old would understand. Even I understand that if I don't put my Intel CPU in direct thermal contact with a heat sink in my PC, it gets too hot.
So Canon can bleat on about using the magnesium alloy case as a heat sink all day long but they didn't implement it that way.
The big question is why.

Please also ask them why they decided it was necessary in the 1DX II to put a heatpipe/heatsink in but they are doing less than the bare minimum in the R5 where the camera is marketed with professional video features, in a market segment with competition delivering reliable professional video features (S1H and A7sIII). This quote from canon themselves is damning - why did they not feel the same need they did then, instead opting to release two pages of overheating documentation and ship a crippled product with clear-as-day poorly designed hardware?
 
 
 

It's possible they set the time limits in firmware as an ultra-conservative "make sure it doesn't burn out" cut off, based on a worst case scenario... it's the kind of thing these large corporations do.

Quite why you wouldn't just design it well like the A7S iii though, I don't know. I think this is irreparable brand damage for this market sector.

The million dollar question - how’s the rolling shutter seem? No worse than an A7SII or A7RIII? 
 
I shoot a lot of documentary on a pretty purpose built A7SII(more recently I throw my A7RIII in for the better slog2 / sgamut3 color science and the APSC punch) rig running off V-mount batteries and recording ProRes to a Shogun. Directors I work with love my old Leica M and MS Optics lenses and the only camera I can provide the full image circle of this glass is a full frame offering like what I’m using. They’d rather take the 8bit 4:2:0 with the fun lenses over cropping them on an S35 cam with better color depth, or springing the cash for a Sony Venice. 
 
Seems to make major sense to move to the S1 or maybe S1H if it has IBIS. Especially considering I own 2 GH5 and a GH5S as my other package. 
 
 
Also side note re: Netflix and the requirements: a lot of the time they aren’t checking the exact specs of what’s being shot unless it’s an in-house show. We did the Demi Lovato doc with probably 25% Alexa and 75% externally recorded A7SII on my lenses. YouTube funded the project and the specs clearly excluded a camera like the A7S, but it’s what worked for the project and nobody ultimately objected or really even knew the specifics of what I had in my rig beyond the editor. Mileage may vary for sure but there seems to be a bit of leeway with the requirements if you’re not working directly on an something like an in-house Netflix gig. 

Regarding LCD dimming, it doesn't let you change the LCD brightness while set to 4K recording. The option is literally grayed out - kinda strange. Is it a heat or power consumption issue? 
 
 
Also, how's everyone feeling with overheating? I used my A6300 exclusively on a 5-camera (All others were A7s I and II) live studio shoot with a top 40s pop artist and was overheating all day. Our workflow was to capture a 10-song live album, so we'd roll cameras, run one ~4 minute song, take a 30-45 second break, and then run another 4 minute song. The camera started overheating on the third song, and for the rest of the day I'd be doing this:  
 
for as long as possible before we ran through the next song. This generally did the trick but obviously garnered some odd looks from the band, though they're used to our shenanigans with pulling good stuff out of tiny cameras.  Heat levels were extremely high way up in the battery slot so pulling the battery and blowing cool air right up there seemed to do it as a preventative measure. 
 
As for the shoot itself, I am absolutely floored at the autofocus. It's insane. I can't share any footage but when it comes out I'll upload a raw A6300 take - the moves it allowed me to do while simply handholding the camera, going from macro shots of hands on keyboards to medium shots of the musicians, passing instruments in the foreground, etc. Holding down the AF/MF button lets you quickly lock focus in case you know you're going to be making a move that will trip it up, and also enables the focus ring on the lens so you can hold the button down, fly in manual focus for a few seconds, let go, and it's back in AF mode. 
 
The image, too. Absolutely bonkers. Rolling shutter sucks super hard(and you can even see it on closeup shots of hands and stuff where the camera's not moving), but the camera is an absolute dream otherwise and I've been able to shoot around it. 1080p mode also sucks. It's not unusable, but it's of a level of detail I'd expect out of a 5D Mark II. Loving the 16-70 Sony Zeiss OSS lens and the 24/1.8. Has anyone used the 18-105 F4? Does it compare? 

Regarding LCD dimming, it doesn't let you change the LCD brightness while set to 4K recording. The option is literally grayed out - kinda strange. Is it a heat or power consumption issue? 
 
 
Also, how's everyone feeling with overheating? I used my A6300 exclusively on a 5-camera (All others were A7s I and II) live studio shoot with a top 40s pop artist and was overheating all day. Our workflow was to capture a 10-song live album, so we'd roll cameras, run one ~4 minute song, take a 30-45 second break, and then run another 4 minute song. The camera started overheating on the third song, and for the rest of the day I'd be doing this:  
 
for as long as possible before we ran through the next song. This generally did the trick but obviously garnered some odd looks from the band, though they're used to our shenanigans with pulling good stuff out of tiny cameras.  Heat levels were extremely high way up in the battery slot so pulling the battery and blowing cool air right up there seemed to do it as a preventative measure. 
 
As for the shoot itself, I am absolutely floored at the autofocus. It's insane. I can't share any footage but when it comes out I'll upload a raw A6300 take - the moves it allowed me to do while simply handholding the camera, going from macro shots of hands on keyboards to medium shots of the musicians, passing instruments in the foreground, etc. Holding down the AF/MF button lets you quickly lock focus in case you know you're going to be making a move that will trip it up, and also enables the focus ring on the lens so you can hold the button down, fly in manual focus for a few seconds, let go, and it's back in AF mode. 
 
The image, too. Absolutely bonkers. Rolling shutter sucks super hard(and you can even see it on closeup shots of hands and stuff where the camera's not moving), but the camera is an absolute dream otherwise and I've been able to shoot around it. 1080p mode also sucks. It's not unusable, but it's of a level of detail I'd expect out of a 5D Mark II. Loving the 16-70 Sony Zeiss OSS lens and the 24/1.8. Has anyone used the 18-105 F4? Does it compare? 

Regarding LCD dimming, it doesn't let you change the LCD brightness while set to 4K recording. The option is literally grayed out - kinda strange. Is it a heat or power consumption issue? 
 
 
Also, how's everyone feeling with overheating? I used my A6300 exclusively on a 5-camera (All others were A7s I and II) live studio shoot with a top 40s pop artist and was overheating all day. Our workflow was to capture a 10-song live album, so we'd roll cameras, run one ~4 minute song, take a 30-45 second break, and then run another 4 minute song. The camera started overheating on the third song, and for the rest of the day I'd be doing this:  
 
for as long as possible before we ran through the next song. This generally did the trick but obviously garnered some odd looks from the band, though they're used to our shenanigans with pulling good stuff out of tiny cameras.  Heat levels were extremely high way up in the battery slot so pulling the battery and blowing cool air right up there seemed to do it as a preventative measure. 
 
As for the shoot itself, I am absolutely floored at the autofocus. It's insane. I can't share any footage but when it comes out I'll upload a raw A6300 take - the moves it allowed me to do while simply handholding the camera, going from macro shots of hands on keyboards to medium shots of the musicians, passing instruments in the foreground, etc. Holding down the AF/MF button lets you quickly lock focus in case you know you're going to be making a move that will trip it up, and also enables the focus ring on the lens so you can hold the button down, fly in manual focus for a few seconds, let go, and it's back in AF mode. 
 
The image, too. Absolutely bonkers. Rolling shutter sucks super hard(and you can even see it on closeup shots of hands and stuff where the camera's not moving), but the camera is an absolute dream otherwise and I've been able to shoot around it. 1080p mode also sucks. It's not unusable, but it's of a level of detail I'd expect out of a 5D Mark II. Loving the 16-70 Sony Zeiss OSS lens and the 24/1.8. Has anyone used the 18-105 F4? Does it compare? 

Regarding LCD dimming, it doesn't let you change the LCD brightness while set to 4K recording. The option is literally grayed out - kinda strange. Is it a heat or power consumption issue? 
 
 
Also, how's everyone feeling with overheating? I used my A6300 exclusively on a 5-camera (All others were A7s I and II) live studio shoot with a top 40s pop artist and was overheating all day. Our workflow was to capture a 10-song live album, so we'd roll cameras, run one ~4 minute song, take a 30-45 second break, and then run another 4 minute song. The camera started overheating on the third song, and for the rest of the day I'd be doing this:  
 
for as long as possible before we ran through the next song. This generally did the trick but obviously garnered some odd looks from the band, though they're used to our shenanigans with pulling good stuff out of tiny cameras.  Heat levels were extremely high way up in the battery slot so pulling the battery and blowing cool air right up there seemed to do it as a preventative measure. 
 
As for the shoot itself, I am absolutely floored at the autofocus. It's insane. I can't share any footage but when it comes out I'll upload a raw A6300 take - the moves it allowed me to do while simply handholding the camera, going from macro shots of hands on keyboards to medium shots of the musicians, passing instruments in the foreground, etc. Holding down the AF/MF button lets you quickly lock focus in case you know you're going to be making a move that will trip it up, and also enables the focus ring on the lens so you can hold the button down, fly in manual focus for a few seconds, let go, and it's back in AF mode. 
 
The image, too. Absolutely bonkers. Rolling shutter sucks super hard(and you can even see it on closeup shots of hands and stuff where the camera's not moving), but the camera is an absolute dream otherwise and I've been able to shoot around it. 1080p mode also sucks. It's not unusable, but it's of a level of detail I'd expect out of a 5D Mark II. Loving the 16-70 Sony Zeiss OSS lens and the 24/1.8. Has anyone used the 18-105 F4? Does it compare? 

Regarding LCD dimming, it doesn't let you change the LCD brightness while set to 4K recording. The option is literally grayed out - kinda strange. Is it a heat or power consumption issue? 
 
 
Also, how's everyone feeling with overheating? I used my A6300 exclusively on a 5-camera (All others were A7s I and II) live studio shoot with a top 40s pop artist and was overheating all day. Our workflow was to capture a 10-song live album, so we'd roll cameras, run one ~4 minute song, take a 30-45 second break, and then run another 4 minute song. The camera started overheating on the third song, and for the rest of the day I'd be doing this:  
 
for as long as possible before we ran through the next song. This generally did the trick but obviously garnered some odd looks from the band, though they're used to our shenanigans with pulling good stuff out of tiny cameras.  Heat levels were extremely high way up in the battery slot so pulling the battery and blowing cool air right up there seemed to do it as a preventative measure. 
 
As for the shoot itself, I am absolutely floored at the autofocus. It's insane. I can't share any footage but when it comes out I'll upload a raw A6300 take - the moves it allowed me to do while simply handholding the camera, going from macro shots of hands on keyboards to medium shots of the musicians, passing instruments in the foreground, etc. Holding down the AF/MF button lets you quickly lock focus in case you know you're going to be making a move that will trip it up, and also enables the focus ring on the lens so you can hold the button down, fly in manual focus for a few seconds, let go, and it's back in AF mode. 
 
The image, too. Absolutely bonkers. Rolling shutter sucks super hard(and you can even see it on closeup shots of hands and stuff where the camera's not moving), but the camera is an absolute dream otherwise and I've been able to shoot around it. 1080p mode also sucks. It's not unusable, but it's of a level of detail I'd expect out of a 5D Mark II. Loving the 16-70 Sony Zeiss OSS lens and the 24/1.8. Has anyone used the 18-105 F4? Does it compare? 

Regarding LCD dimming, it doesn't let you change the LCD brightness while set to 4K recording. The option is literally grayed out - kinda strange. Is it a heat or power consumption issue? 
 
 
Also, how's everyone feeling with overheating? I used my A6300 exclusively on a 5-camera (All others were A7s I and II) live studio shoot with a top 40s pop artist and was overheating all day. Our workflow was to capture a 10-song live album, so we'd roll cameras, run one ~4 minute song, take a 30-45 second break, and then run another 4 minute song. The camera started overheating on the third song, and for the rest of the day I'd be doing this:  
 
for as long as possible before we ran through the next song. This generally did the trick but obviously garnered some odd looks from the band, though they're used to our shenanigans with pulling good stuff out of tiny cameras.  Heat levels were extremely high way up in the battery slot so pulling the battery and blowing cool air right up there seemed to do it as a preventative measure. 
 
As for the shoot itself, I am absolutely floored at the autofocus. It's insane. I can't share any footage but when it comes out I'll upload a raw A6300 take - the moves it allowed me to do while simply handholding the camera, going from macro shots of hands on keyboards to medium shots of the musicians, passing instruments in the foreground, etc. Holding down the AF/MF button lets you quickly lock focus in case you know you're going to be making a move that will trip it up, and also enables the focus ring on the lens so you can hold the button down, fly in manual focus for a few seconds, let go, and it's back in AF mode. 
 
The image, too. Absolutely bonkers. Rolling shutter sucks super hard(and you can even see it on closeup shots of hands and stuff where the camera's not moving), but the camera is an absolute dream otherwise and I've been able to shoot around it. 1080p mode also sucks. It's not unusable, but it's of a level of detail I'd expect out of a 5D Mark II. Loving the 16-70 Sony Zeiss OSS lens and the 24/1.8. Has anyone used the 18-105 F4? Does it compare? 

I picked up my A6300 this morning at Samy's in LA on the way to a shoot at an auto body shop and have been shooting with it (in Slog2 PP7) in place of my A7s. I did a quick and dirty sharpness test between 4K 24p, 4K 30p, 1080 24p, and 1080 60p. I also threw in a 1080p Slog2 frame from the A7s version 1.
 
All images are on a speed booster (non ultra) using a Canon 24-105 F4L IS (wide open at reported f2.8) through a "Fader ND Mark II" brand variable ND. This is my doc-style work setup and now that I'm seeing the results I'll definitely be redoing this test stopped down a little on a different lens, with a less busy subject. Good news is that the 4K 30 mode doesn't seem to suffer from any weird image quality loss or additional noise compared to the 24p mode aside from the obvious crop. I was very surprised at 20,000 ISO that the shot has very little noise in either mode. Granted it's still daytime and I just applied lots of ND for a proper exposure, but I'm going to do more tests as night falls.
https://philymack.box.com/s/3x7ge6qqeqgvsvj3z4t6e05oi7vc00a4
 
 
Overall, having a good time with the camera today especially because I was able to roll right into a gig with it, but between the 4K having a near-dealbreaker amount of rolling shutter (10-11ms more than the A7s II 4K mode) and the 1080p mode being a little soft, it's going to be a tough sell for me. You can definitely tell that the 1080p mode almost looks like a combo between the softness of, say, a 5D Mark III's video mode with the dynamic range of an A7s. I'm dedicating the weekend to tests and have rented a Sony E 24mm 1.8, a 16-70 f4 OSS, and a Sony E 35mm to give them all a shot. I've got plenty of A7s Is and IIs through work so I'm sort of debating whether I want to keep the A6300 for myself as a personal stills/video powerhouse or jump to an A7rII. 
 

I picked up my A6300 this morning at Samy's in LA on the way to a shoot at an auto body shop and have been shooting with it (in Slog2 PP7) in place of my A7s. I did a quick and dirty sharpness test between 4K 24p, 4K 30p, 1080 24p, and 1080 60p. I also threw in a 1080p Slog2 frame from the A7s version 1.
 
All images are on a speed booster (non ultra) using a Canon 24-105 F4L IS (wide open at reported f2.8) through a "Fader ND Mark II" brand variable ND. This is my doc-style work setup and now that I'm seeing the results I'll definitely be redoing this test stopped down a little on a different lens, with a less busy subject. Good news is that the 4K 30 mode doesn't seem to suffer from any weird image quality loss or additional noise compared to the 24p mode aside from the obvious crop. I was very surprised at 20,000 ISO that the shot has very little noise in either mode. Granted it's still daytime and I just applied lots of ND for a proper exposure, but I'm going to do more tests as night falls.
https://philymack.box.com/s/3x7ge6qqeqgvsvj3z4t6e05oi7vc00a4
 
 
Overall, having a good time with the camera today especially because I was able to roll right into a gig with it, but between the 4K having a near-dealbreaker amount of rolling shutter (10-11ms more than the A7s II 4K mode) and the 1080p mode being a little soft, it's going to be a tough sell for me. You can definitely tell that the 1080p mode almost looks like a combo between the softness of, say, a 5D Mark III's video mode with the dynamic range of an A7s. I'm dedicating the weekend to tests and have rented a Sony E 24mm 1.8, a 16-70 f4 OSS, and a Sony E 35mm to give them all a shot. I've got plenty of A7s Is and IIs through work so I'm sort of debating whether I want to keep the A6300 for myself as a personal stills/video powerhouse or jump to an A7rII.