Firmware Patch v1.0

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Re: Firmware Patch v1.0

Postby xbern » Sat Mar 31, 2012 8:29 pm

so when are we expecting the d7000 release?
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Re: Firmware Patch v1.0

Postby stuge » Sat Mar 31, 2012 8:53 pm

xbern wrote:so when are we expecting the d7000 release?

Very easy: When you create it.

If you are unable to then you can not really expect a single thing.
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Re: Firmware Patch v1.0

Postby 4cc3ss » Sat Mar 31, 2012 9:18 pm

stuge wrote:
Dionysus wrote:The video modes and corresponding maximum recording times with an empty 16GB card as reported on a D5100 are:

Did you actually record video and the camera stopped recording after these times, or are the times you reported what the camera showed as remaining time in the display? If you recorded, the file size of each recording could also be interesting to confirm the FAT limit.


My times was the same as Dionysus, with D3100 8gb fat32, 4gb is the limit for fat/FAT32 system, any bigger would need a different file system or once the camera reaches the 4gb limit it starts a fresh file.

I've recorded the maximum time length, the shutter just releases once 4gb is met.
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Re: Firmware Patch v1.0

Postby 4cc3ss » Sat Mar 31, 2012 9:24 pm

Camera D3100, i've recorded 1080p 25mins, when the time is reached, the shutter closes then this....

Error
Press shutter release button again

Trying for the 2nd time.
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Re: Firmware Patch v1.0

Postby stuge » Sat Mar 31, 2012 9:31 pm

4cc3ss wrote:Camera D3100, i've recorded 1080p 25mins, when the time is reached, the shutter closes then this....

Error
Press shutter release button again

Hm. It would be good to record the state of the memory card when this happens. At least file size, but a complete filesystem image would be even better.

Thanks for clarifying what testing was done. I'm currently recording at lowest quality onto an 8GB card although I had enough on it that I will only get 59m40-something seconds onto it. Let's see.
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Re: Firmware Patch v1.0

Postby 4cc3ss » Sat Mar 31, 2012 10:01 pm

Same again, it didn't even reach the time limit, about 3 mins before final time, shutter closes then shutter error, from that point camera was well mardy had to remove battery, and then replace it, still showed error, but i was able to reset the shutter.

Come to read contents of the card via usb..no images found :shock:

I seem to think the file is corrupting as it's trying to write more than 4gb and thats why the camera goes pete tong, i could be wrong, once batteries recharged, i'll give it another go.
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Re: Firmware Patch v1.0

Postby stuge » Sat Mar 31, 2012 10:15 pm

4cc3ss wrote:stress test to see if protection exist for the sensor overheating

I sat my 3100 on the floor and started recording at lowest quality what was mostly black, because of a low lit room. I got 50m23 in a 1.5GB file before the shutter closed. When trying to restart recording I got the message:

(!) Unable to start live view.
Please wait for camera to cool.

The memory card and battery were both maybe 55 centigrade, the back and front of the body were also warm to the touch, perhaps 40-45 centigrade.

After waiting a few seconds the camera is recording again, with another 36 minutes to go.

The processor(s) and LCD generate heat, not the sensor. It could be interesting to put an IR camera on the camera.
Last edited by stuge on Sat Mar 31, 2012 10:29 pm, edited 1 time in total.
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Re: Firmware Patch v1.0

Postby stuge » Sat Mar 31, 2012 10:26 pm

4cc3ss wrote:I seem to think the file is corrupting as it's trying to write more than 4gb

Yes, quite likely. It happens with some video cameras too if they are switched off without first stopping the recording.

The Nikon may attempt to estimate before recording if there will be sufficient space available for the movie, but any such estimate will always be incorrect since video bitrate varies heavily. My testing initially showed 59m40 available, but after recording 50m23 there was 36m available.

By "only" removing the time limit it's possible (I'm speculating here) that the code still checks if there will be enough room for 10m00 video with worst case bitrate. Since there's more room than that, there seems to be no problem, and the code assumes that the time limit will stop the recording, except that doesn't happen anymore. Simeon may have more insight into actual details.
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Re: Firmware Patch v1.0

Postby stuge » Sat Mar 31, 2012 10:30 pm

stuge wrote:(!) Unable to start live view.
Please wait for camera to cool.

Taking photographs in this state works fine.
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Re: Firmware Patch v1.0

Postby 4cc3ss » Sat Mar 31, 2012 10:32 pm

stuge wrote:
4cc3ss wrote:stress test to see if protection exist for the sensor overheating

I sat my 3100 on the floor and started recording at lowest quality what was mostly black, because of a low lit room. I got 50m23 in a 1.5GB file before the shutter closed. When trying to restart recording I got the message:

Please wait for camera to cool.

The memory card and battery were both maybe 55 centigrade, the back and front of the body were also warm to the touch, perhaps 40-45 centigrade.

After waiting a few seconds the camera is recording again, with another 36 minutes to go.

The processor(s) and LCD generate heat, not the sensor. It could be interesting to put an IR camera on the camera.


That's great, you actually get warning ;)
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