Any real measurement data on mirrorless sensor heating?

[Frans Waterlander]

A while back I tried to get hard data on sensor heating in mirrorless cameras and resulting noise increase/dynamic range decrease. I contacted DxoMark and a German test house, but they simply said they don't let the sensor heat up when doing noise/DR testing.
So, from where I sit, there are only the dire warnings in user manuals and the "I don't see a problem" from mirrorless camera users.

Anybody aware of real data?

[DP]

A while back I tried to get hard data on sensor heating in mirrorless cameras and resulting noise increase/dynamic range decrease. I contacted DxoMark and a German test house, but they simply said they don't let the sensor heat up when doing noise/DR testing.
So, from where I sit, there are only the dire warnings in user manuals and the "I don't see a problem" from mirrorless camera users.

Anybody aware of real data?

try www.photonstophotos.net - may be he can guide you to

[Frans Waterlander]

I believe I contacted Bill Claff in the past on this, but I'm not 100% sure. I just sent him an email to pick his brain.

[digitaldog]

So, from where I sit, there are only the dire warnings in user manuals and the "I don't see a problem" from mirrorless camera users.

No. As explained the last time you asked. 
https://www.photo.net/discuss/threads/are-dslrs-doomed-tony-northrup-says-no.5515216/

[Frans Waterlander]

No. As explained the last time you asked. 
https://www.photo.net/discuss/threads/are-dslrs-doomed-tony-northrup-says-no.5515216/

And again, no hard data, just opinions.

[digitaldog]

And again, no hard data, just opinions.

Based on experience from those you ask way, way back last May. 
Would you like a different set of opinions from actual users since you last asked?
Maybe you should consider the sound advise from DxO who told you: don't let the sensor heat up when doing noise/DR testing.

[Frans Waterlander]

Based on experience from those you ask way, way back last May. 
Would you like a different set of opinions from actual users since you last asked?

Read the heading of this thread: "Any real measurement data on mirrorless sensor heating?"
Is it too much to ask the folks that measure and publish dynamic range numbers to measure and publish dynamic range numbers for different ambient temperatures and operating conditions over extended periods of time? Apparently it is.

[digitaldog]

Read the heading of this thread: "Any real measurement data on mirrorless sensor heating?"

You have such a camera? You have a way to measure heat?
"Any real measurement data on how many angels can fit on the head of a pin?" 

[Frans Waterlander]

You have such a camera? You have a way to measure heat?

Test houses such as DxoMark measure and publish dynamic range data, so I would think they can and should measure and publish dynamic range data at various ambient temperatures and prolonged use in various modes. Or might that be too upsetting for the various camera manufacturers?

[digitaldog]

Test houses such as DxoMark measure and publish dynamic range data, so I would think they can and should measure and publish dynamic range data at various ambient temperatures and prolonged use in various modes. Or might that be too upsetting for the various camera manufacturers?

You should absolutely contact them again and notify them how to do their jobs properly.

[Frans Waterlander]

You should absolutely contact them again and notify them how to do their jobs properly.

So, you think that not testing and publishing dynamic range degradation at various ambient temperatures and prolonged use is proper?

[DP]

So, you think

don't waste time on Andrew

[Frans Waterlander]

don't waste time on Andrew

Good advise!

[Manoli]

I believe I contacted Bill Claff in the past on this, but I'm not 100% sure. I just sent him an email to pick his brain.

... did he reply ?

[Slobodan Blagojevic]

Sounds like a reasonable request.

If many user manuals warn about it, and some cameras apparently shut down if overheated, there is a way to measure the temperature and, consequently, impact on image quality.

[RichDesmond]

Read the heading of this thread: "Any real measurement data on mirrorless sensor heating?"
Is it too much to ask the folks that measure and publish dynamic range numbers to measure and publish dynamic range numbers for different ambient temperatures and operating conditions over extended periods of time? Apparently it is.

Yes. And the reason for it should be obvious.

[digitaldog]

So, you think that not testing and publishing dynamic range degradation at various ambient temperatures and prolonged use is proper?

Just tell us the answer you want to hear again. It will save everyone SO much time again. 😂

[sbay]

My camera records temperature in the metadata and can be extracted with exiftool. I'm not sure the exact protocol photonstophotos and others use to get read noise, but seems like this should be doable oneself.

[Frans Waterlander]

... did he reply ?

Yes, he did and no, he hasn't done such testing. He may if and when he has access again to cameras.

[digitaldog]

My camera records temperature in the metadata and can be extracted with exiftool. I'm not sure the exact protocol photonstophotos and others use to get read noise, but seems like this should be doable oneself.

Yup, in RawDigger (a must have tool), my Sony shows the following (I've filtered EXIF for "Ambient"):