Is this a known DMR fault?

[mitchell]

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Battery removal solved it. Is there any preventative? Is it a symptom of imminent doom?

 

Thanks for any info.

 

Best,

 

Mitchell

 

 

 

 

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[robsteve]

Can you give us more info such as ISO, shutter speed and what brand of SD card?

 

Was the SD card also used in the M8? I have noticed that M8 cards in the DMR can hang the DMR if you don't format it in the DMR.

 

Odd looking images like this are usually card or card reader related. Are the files sizes on these images the normal DMR size?

 

Robert

[mitchell]

Hi Robert,

 

Thanks for your reply. Yes the card, either a 2 gig Transend or SanDisk, I'm not sure which, was probably last used in an M8. But, I did reformat it in the DMR.

 

Do you think it's a mistake to use the same card in the DMR and M 8 even if you format every time?

 

Checking the exif data, it shows all the problem images were shot at 1.0 sec. @ f 1.7, exp. bias 10 EV, all of which of course are false. It was more like 1/4 sec, at f 22, which is what is shown for the images after the successful reboot.

 

At some point, when I turned the camera off, it didn't turn off until I pushed the OK button.

 

Best,

 

MItchell

[robsteve]

Are the file sizes the same as the rest of the good pictures, assuming you are shooting DNG. When you mention having to press the off button to turn the DMR off, I would guess you had a battery problem and these images were written when the battery was going dead.

 

Robert

[mitchell]

Robert,

 

I took the battery out, and reinserted it after a 20 second pause, to solve the problem. I'll have to check the exif on my other computer for file size tomorrow.

 

Thanks for your help,

 

Mitchell

[robsteve]

Mitchell:

 

By files size, I mean the size of the file on the hard drive, not the pixel dimensions. The DMR files are all the same size, about 19mb. If there was a write error, the file size may be different.

 

You should also try cleaning your battery contacts. When the contacts get dirty, pushing on the battery with the palm of your hand will cause the camera to shut down or do odd things.

 

Robert

[cmb_]

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Checking the exif data, it shows all the problem images were shot at 1.0 sec. @ f 1.7, exp. bias 10 EV, all of which of course are false. It was more like 1/4 sec, at f 22, which is what is shown for the images after the successful reboot.

 

At some point, when I turned the camera off, it didn't turn off until I pushed the OK button.

 

 

One thing to note about the DMR, which perhaps you already know.

Sometimes (Not Every Time), when I insert a new battery when the camera and back are OFF, the back will turn ON automatically.

If I leave it ON, and then turn the camera ON, the camera and back may not communicate properly and the EXIF data is not reported correctly, as in your example.

To keep this from happening after inserting a fresh battery, if the back turns ON I must push the OK/OFF button on the back to turn the DMR (the back) OFF before turning both the camera and the back ON using the switch located on the camera.

You can also sidestep this problem by leaving the camera switch in the ON position when changing batteries.

 

This does not explain why the back wrote the files the way it did but it may be helpful. Also, when the camera and back are not in communication you will notice the ISO flashing on the LED.

[mitchell]

CMB,

 

This is exactly what happened. My battery went dead. I replaced it with a charged one. The back went on, and I think I turned the camera on and took the problem images. The problem remained, as I remember it, until I pushed the OK button and got the camera turned all the way off.

 

Thanks everyone for your help.

 

Best,

 

Mitchell