My Nikon D3100 keeps "freezing" up. I'm using a class 6 card, so I thought that a class 10 might fix it, but it still happened when I tried a class 10. After I take a few shots in a row in pretty quick succession (not always machine gunning) the camera will just freeze. AF will work, but I don't get a confirm beep, and the little green light on the back is stuck on. This sometimes happens even when the camera is not processing the last shots. The only solution is to take out the battery. The on/off switch does nothing, as does taking out the SD card. Anyone else experienced similar?
Are you shooting jpg and raw mode?
It could be a buffer issue. I have experienced similar on my d200 and 300 if Itake a lot of successive exposures, even if not on continuor mode.
Douglas
I'm just shooting RAW, not both. It can happen after as little as 3-5 exposures over 3-5 seconds, which has me worried. I debating whether I should take it in or not.
You might need to do a reset of the camera and a format of the memory card to get things back up and running normal. If that doesn't work, maybe something fried inside the camera that would require service.
Is there any crud in the SD card socket that could hinder a good contact with the card ? Or on the card itself ?
In general I always format my cards in-camera after I have transferred the photos to two different storage locations. I almost never use the delete feature. I can't say that is especially relevant nowadays but years ago it used to be recommended practice, perhaps because the file system could get fragmented or whatever. Today's card controllers are no doubt better than in the early days. However, taking a card out while the camera is trying to write to it could mess up the whole system and a format could well be needed to recover from that. This can happen with external hard drives attached to a computer too, and so the problem is not necessarily card specific. You might even try doing a format in a card reader attached to the computer before trying again in the camera. You're more likely to get some error feedback from the computer if the format fails. Well, maybe
Does the problem occur with more than one card ? You should have at least one backup card in case of a problem such as this or even in case you drop and lose the main card.