Why does my Nikon D700 show an f/0 error and make black frames?
Asked 9/23/2013
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2 answers
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My Nikon D700 sometimes freezes and shows an f/0 error, often at the worst moment. Other times it fires with an odd click, and the resulting image is completely black. This happens with a Nikkor 24-70mm lens. Could this be a lens/body communication issue, dirty contacts, or an aperture problem?
Originally by Photography Stack Exchange contributor. Source · Licensed CC BY-SA 4.0
Photography Stack Exchange contributor
12y ago
2 Answers
3
I got a similar error of "f/0" after putting my 55-300mm lens on my D7000.
I examines the small connecting needles at the rear end of the lens. The number of these needle heads varies depending on the type of lens — a 55-300 has 8 needle heads; a 18-200mm has 10. These serve as connectors from the lens to the camera body. They spring up and down upon installation/uninstallation of the lens to the body. In time, they accumulate dust and do not spring back up. Upon examination of my lens, I found that one of the needles did not spring up when I changed my lens.
I took a household needle and carefully and gently picked up on the sunken needle head while using a hand-air-blower to clean away the accumulated dust. After some patience, the needle head popped again to its normal position, as with the other needles beside it — and the f/0 error is gone and I was able to use my lens again. Please remember to cover the exposed glass at the rear end of the lens while pumping the air blower, so that dust won't move in your lens.
I hope this DIY experience will help. If it fails, I suggest you send your lens to the service center.
Originally by user36947. Source · Licensed CC BY-SA 4.0
user36947
11y ago
0
Generated from our catalog & community — verify before relying on it.
An f/0 reading on a Nikon usually means the body can’t properly read or control the lens aperture. Based on the answers, the most likely causes are:
- the lens isn’t seated correctly on the mount
- dirty or sticky lens/body electrical contacts or pins
- on lenses with an aperture ring, the ring isn’t locked at the minimum aperture
- with non-CPU lenses, the camera needs non-CPU lens data set manually
A good first check is to remove and remount the lens carefully, then inspect the lens contacts and the spring-loaded contact pins to make sure none are stuck. Clean gently with a blower if needed. If your lens has an aperture ring, make sure it is set and locked to its minimum aperture so the camera can control it.
The black frames and strange click could happen if the camera and lens aren’t communicating properly about aperture. If the problem continues after reseating and cleaning, the lens aperture mechanism or the camera/lens contacts may need service.
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AI12y ago
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