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Canon 350D Problem
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I had a problem today that has been reoccuring recently on my camera. It only seems to happen during long exposures (>1 sec) as well but it definitely doesn’t happen all the time on long exposures.
Basically what is happening is I press the shutter release to take the pic and then wait for it to close. When it closes the picture counter on the viewing screen starts flashing and all other numbers on the screen disappear. The picture counter (number of photos left on the memory card) keeps flashing then for ages. Even when you turn off the camera it keeps flashing. Some times after about 10 seconds it stops and the camera then turns off properly. When you turn the camera on again the photo taken is stored correctly.
This evening however the it kept flashing for ages, >30 seconds even with the camera turned off so eventually I removed the battery to stop it as you cannot use the camera while it is flashing. When I put the battery in the camera worked fine again but the photo I had taken wasn’t recorded on the memory card this time.
Now initially I presumed that it was the camera writing to the card but as it doesn’t happen all the time after long exposures I have kinda ruled that out. This evening threw a new one into the works by not saving the photo onto the card, although it was a 4 min exposure.
Anyone have any idea what this is and what might be causing it? The camera is a 350D and I was using a Sigma 18-125mm lens. It has happened with other lenses though as well so probably no significance with the lens.
Any help really appreciated.
Does it happen with all your memory cards? Is there a “long exposure noise reduction” feature on your camera? If there is, did you try turning it off?
I actually have the long exposure noise reduction on and I only found it recently. That may be the problem. I’ll try it again tomorrow with it off. Cheers for that.
Long exposure noise reduction was my first thought as well. If you do a 4 minute exposure with long exposure noise reduction on, the camera will do a further 4 minute exposure with the shutter closed in order to record the noise generated and then remove it from the original exposure.
Podge wrote:
Long exposure noise reduction was my first thought as well. If you do a 4 minute exposure with long exposure noise reduction on, the camera will do a further 4 minute exposure with the shutter closed in order to record the noise generated and then remove it from the original exposure.
I didn’t know that!!
Thanks for that. Maybe I should read the manual again!! :D
What is the benefit of using this function in camera? Would it be easier to just remove the noise after through noise ninja or something or would the camera make a better job of it in the first place?
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