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#1
smstreck

smstreck

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I have an old D40x. I have it on a tripod and want to take some still images using aperture priority with the aperture as small as possible. Sometimes it works, and sometimes I get a flashing question mark and "ISO-A", and when I view the error message, it says a flash is recommended. But I don't want to use a flash, and I don't it won’t take the picture. How do I get the flashing to stop? What's weird is that sometime it take a picture and, without changing any settings, sometimes it doesn't. Thanks.

 



#2
Ellinor William

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Try removing the batteries, and leaving the camera on a (dry, non-humid, non-dusty) shelf for overnight. Then put the batteries back in and try the camera again.

Then try cleaning the terminals in the battery compartment, after removing the batteries, first by rubbing off with a fresh pencil eraser, then by wiping the terminals off with cotton swabs moistened in rubbing alcohol, then letting them dry off for 5+ minutes with the battery compartment door open, then try turning the camera On again.