It can be reglued with Superglue, but be very careful not to use the glue from the tube or you could get it everywhere. First focus the lens on infinity. This is the furthest back or most withdrawn position of the lens. The infinity marking on the ring will be beside the diamond or dot indicator. Put a little bit of Superglue onto the end of a matchstick, and then use the matchstick to put traces of the Superglue on the lens barrel, exactly where the ring will sit. carefully place the ring on its correct position on the lens barrel.
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As you have dropped your camera due to that lens barrel (focusing ring) is not able extend, Your camera need to be disassembled to get at the focusing ring at Service Center but you can try these solution.
What you can try to do is spray some compressed AIR into the lens to try to free up any sand or dust that may have worked its way in. If that doesn't help, you can gently bump the camera to try to free the focusing ring. or.......
You can try to turn camera ON at the table (facing it to the ceiling), don't put camera down face to the floor when opening. Good luck and have a nice day. Rating the solution is highly appreciated.
Hi there, after fall in the floor , your camera's lens guider is broken & thats why its not able to came out fully & not doing proper focusing. Replace the lens guide pin. After that it will work fine like before. Thanks.
Wow, that's weird. Does it do it with the auto-focus switch on the body turned to manual? I shoot a D300 and know pretty much everything about it there is to know and the D700 is basically the same camera with a full frame sensor. The only things I know of that drop CH frame rate are shooting in 16-bit raw and it shouldn't kill it like that, using full-auto with tracking will also cause a lag in auto-focus but that still doesn't seem right here. If it only does it with the auto focus on then it may have trash on the AF screen in the camera and needs to be cleaned. Try setting the body switch to manual focus, remove the grip and shoot jpeg and see if it still happens. If it does, reset the menu settings and try again. If it still does it than you probably need to give it a trip to Nikon. If it quits than start putting things back one at a time until you figure out what is doing it. Somebody told me that Nikon will clean the pro cameras for free once a year while under warranty, I haven't looked into it yet to make sure.
Only reason the lens will not auto focus when you depress the shutter half way is due to either lens AF switch is set to Manual OR camera body's focus system is on M. There is 3 way toggle switch below the synch port around the lens mount. It should be set to C or S in order for auto focus to work. If all the settings are correct and even "AF-ON", next to rear dial doesn't activate auto focus then the issue maybe in the setting or the body itself. As for the buffer reading r27, I think mine displays r## regardless of burst/continuous mode.
I would take the lens off and then put it back on, being careful to align the registration marks on the lens barrel and the camera. It should click into place quite firmly. If this does not fix the problem, take it back for repair.
There is a bar that transfers the movement of the focusing ring to the motor in the back of the lens. If it jumps out of the plastic slot, you will hear the AF motor turn, but it will never focus in either auto or manual mode. You will have to buy a new lens, get the lens repaired (probably more expensive than buying a kit lens), or partially take the lens apart and re-seat the bar.
Here is a link showing how to fix it: http://forums.dpreview.com/forums/read.asp?forum=1022&message=17650836
I did it successfully in about an hour with a set of jeweler's Phillips screwdrivers, tweezers and a strong lamp. You MUST be comfortable delecate parts and tiny screws. Then again, you have nothing to lose if you are going to buy a replacement lens.
There is like a metal cradle inside the camera in the roof that flips down. The Focusing screen is to be placed in the roof of the camera with the small tab facing OUT of the camera. The Cradle then lifts upwards and clicks in.
do not touch the main part of the focusing screen. Try only to touch the tab