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|| SportsShooter.com: Member Message Board
Nikon 300 2.8 problem
Brett Groehler, Photographer
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Duluth | MN | USA | Posted: 4:35 PM on 10.19.09 |
->> I have a 10 year old Nikon AF-S 300mm 2.8 D lens. Using any body including a D3 and D2X on any fstop or mode the camera will read F6 in the top display screen and the frames turn out underexposed and unusable. If you turn the camera off then on it will revert back to the settings you had. If its just left on it will sometimes stay on the correct setting then suddenly the F6 will come up again. Just wondering if anyone else has come across this and if there is a quick fix rather than sending it off to NPS.
thanks |
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Matthew Bush, Photographer
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Hattiesburg | MS | USA | Posted: 5:15 PM on 10.19.09 |
| ->> I had this happen with a 14 2.8 that another staffer dropped and bent the mount I think it was a Lense connection problem or a voltage problem. I am willing to bet it it reads f6 with a little hill looking thing next to it. The camera is thinking its a manual lense and is not metering correctly because the lense is not talking nice with the camera. |
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Eric Canha, Photographer
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Brockton | MA | United States | Posted: 5:35 PM on 10.19.09 |
->> F6 and a delta or triangle on the top LCD display indicates that the lens and the body have lost communication.
You want to try to clean all the contacts on the mount and the mounting flange as well. You can also check the 2 tiny screws that hold the contact bracket on the mount and make sure that they are tight as well. I'm working from memory here but the bottom line is that you want to make sure that anything that is responsible for getting electrical impulses between the lens and body are clean and tight.
Another thing that you can do to diagnose the problem is to use a release cable on the body and only look through the lens without placing pressure or torque on the lens/body. I had a D2X with a bad mount that would d/c from the lens if I torqued the body from vert to horz too fast of zoomed a 70-200 a little too enthusiastically. The cable removes outside forces from stressing the connection (except for gravity). Not a great way to work, but in a bind it may get you through a game.
The other reality is that after 10 years of use the contacts may have lost enough metal that they simply need replacing. |
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Geoffrey Bolte, Photographer, Assistant
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Spencer/Worcester | MA | USA | Posted: 5:54 PM on 10.19.09 |
| ->> I had a similar issue with my 300 2.8 II, the mount was loose and wasn't making a tight connection let alone well used. Brought it to MidState Camera Repair in RI and $185 or so later it was all better. Been 6 months and has been working like a champ! |
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Brett Groehler, Photographer
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Duluth | MN | USA | Posted: 11:56 AM on 10.20.09 |
->> thanks all.. makes perfect sense. I will clean and tighten and see if that helps..
bg |
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Richard Orr, Photographer
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Longmeadow | MA | USA | Posted: 4:43 PM on 10.20.09 |
->> I just had a problem where the aperture lever would not release. This meant that no matter what the camera said, the lens was wide open. After a little bit of investigation, it appeared to be stuck. I took some air and blew it into the little level area, moistened it a little and it works like a charm.
Thats what I get for leaving the end cap off the lens when I am not using it. |
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