My D300 started acting quirky several months ago and then died last week. The problem was not old batteries. It started with the shutter not working. Then, the auto focus would not work. After turning off and on, it worked again. Then it didn't....
Another odd thing: I got a "grey" screen when I looked through the viewfinder on several occasions. Thinking the problem was a bad battery connection, I gently pushed the battery tighter in the compartment. This caused the grey screen again. Minutes later, I heard a ffffsssst, and everything quit. The mirror permanently locked up. No life, no matter what I did.
Called Nikon, and they had me push two reset buttons at once. Nothing. I had been using a Promaster 8 gb memory card for the past two years. Nikon said it was not an approved card and could have caused the problem. Nobody I know has ever experienced such an issue.
I plan to send it in for inspection and possible repair. Meanwhile, I'm using my old D200. Now that is starting the same quirky behavior. I wondered if the problem could be with my much older 300mm f2.8 AF-I lens or the Kenko Telepro Plus 1.4 teleconverter. Nikon said its teleconverters won't work with the older lenses because new electronics don't match the old. But yesterday I saw somebody shooting with a D300 and exact same older lens with a Nikon 2X teleconverter, and it was working fine.
Anyone care to speculate on what might be causing these issues? I'm expecting a used D700 to arrive soon, and I definitely do not want to corrupt that by using suspicious accessories.
Any help would be greatly appreciated.
#1. "RE: D300 mysteriously died" | In response to Reply # 0Leonard62 Nikonian since 15th Mar 2009Sun 28-Apr-13 10:59 PM
Does the AF-I lens work on your D200 without the TC? If so stop using the Kenko. You don't want to kill the D200 and the D700 when it arrives.
The AF-I lens will work with the Nikon TC's. They worked with my AF-I 400mm f2.8 lens.
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#2. "RE: D300 mysteriously died" | In response to Reply # 0Stagecoach Nikonian since 03rd Apr 2009Sun 28-Apr-13 11:11 PM
I'm a D300 owner and luckily have never experienced any problems with the camera except operator error.
With respect to the 'ffffssst' sound it made when you pushed the battery harder in sounds like some sort of short that has now killed it totally.
You mention that you use the Kenko Teleconverters and wonder if the problems you are experiencing are specific to when these are fitted ?
I mention this because I have read various articles where concern is raised at the intermittent failure of certain functions due to the loss of continuity of electrical contact caused by slight play in the mounting. Although these concerns were with regard to the Kenko Tubes and the affect from heavier lenses it is something to be aware of.
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#3. "RE: D300 mysteriously died" | In response to Reply # 0MEMcD Nikonian since 24th Dec 2007Mon 29-Apr-13 04:26 AM
Welcome to Nikonians!
Sorry to hear of the problem with your D300.
The Nikon TC-14E II, TC-17E II, TC-20E II and III are fully compatible with all Nikon AF-S and AF-I Telephoto lenses including your 300mm f/2.8D ED IF AF-I.
If the problem started when you were using the Kenko TC, I would not be using it with another camera before having the TC checked out or repaired.
#4. "RE: D300 mysteriously died" | In response to Reply # 3roghayden Registered since 28th Apr 2013Tue 28-May-13 01:11 AM
Thanks for the replies here. This issue has been keeping me awake at night. I suspected the Kenko teleconverter was the culprit. Something that is further confusing is that a friend loaned me his Tamron teleconverter, which works fine with his same 300 mm lens and D300. It did not work for me with the exact same setup. So....is it the lens or the teleconverter? No problem with the lens without the tele, so it must be the tele.
#5. "RE: D300 mysteriously died" | In response to Reply # 4MEMcD Nikonian since 24th Dec 2007Tue 28-May-13 04:51 AM
The Tamron and Kenko TC's are optically and mechanically identical.
Verify that all of the electrical contacts on the lens, TC, are projecting out the same distance. They are spring loaded and can get jammed in.
If they are ok, try cleaning all of the electical contacts on the Lens, TC, and camera body with DeOxit on a Q-Tip.