Nikon dx40 rattling piece inside lens

Do you mean the Nikon D40x? The D40x does not shoot video. Sorry.

This lens has a five year Nikon warranty, if the seller won't fix it, contact Nikon. This lens most certainly should not be doing this!!

Best way to contact Nikon:

800 - NIKON - UX

send it to an authorized repair centre.

http://www.ebookspdf.com/gadget/1193/the-nikon-guide-to-digital-photography-with-the-coolpix-l5/

Click the orange download button

http://uscamera.com/1f998-259.htm

DON'T TRY TO FIX THIS YOURSELF! You will only add to the damage. If your lens is in warranty, contact Nikon for instructions to get it repaired. If it is out of warranty, I would either pay Nikon for the repair or take it to a camera repair man.

No, you have to use all manual controls.

Take a look at the little 2 grey pieces that open and close over your lens when you turn it on and off. Those might be jammed, if so try to straighten them out. That would be the easy answer, otherwise you might have a problem with lens inside the camera in which case youll need to get it repaired.

It problably a loosen tiny piece inside the barrels. Do not attempt disassembly, you can ruin the less. In NY you can get the repair information in BH.

Do not try to fix it. Return under warranty- this should not have happened.