Muse on nikon says no lens connected

SOURCE: nikon coolpix l12 lens error

Dear All, Looking at other threads this seems a standard fault for many brands. I know the dreaded 'lens error' is a recognised Nikon fault.

I had the same problem with a Nikon Coolpix L1; lens would shuttle in and out rather woriedly and then get stage fright and freeze, hiding behind a lens error tag.

The solution came from a similar site to this and listed at least ten happy punters who tried it and found it worked, so, brace yerselfs....

Put a paperback book on decent sort of a table and slam the flat base of the camera down onto it as hard as you dare. If you slam and hold firm to the book it seems to give better shock without having to belt the poor thing to hell.

Worked first time for me. Not a cure, though. You'll have to repeat it every few months perhaps.

I suppose your camera may explode during the process; I decided mine was unusable as it was and so I'd nothing to lose.

If you break your wrist change to the other hand and don't slam so hard this time!!!

Before that I found some correlation between battery type, charge and lens function but the book bash was an instant cure.

Do let me know of any success

SOURCE: nikon s200 when camera turned on lens error

You may have a jammed lens assy. When the camera is turned on, camera go through a few stages of processing to be ready to take picutre and if the lens does not respond mechanically, it will give you a lens error. Lens jams due to sand or impact (even unnoticable light impact). If the lens is extended out you can somehow grab the lens barrel lightly with two fingers while turning the power on and nudge it side by side. If this did not help, take it to a reliable local technician for a diagnostic(should be free). Good luck. -james

SOURCE: nikon 18-200 mm vr lens not auto focusing on my nikon d200

lets start with the basics, try hard reseting it and try again, if that doesnt work then
try upgrading your firmware (if possible on your camera) and if that doesnt work then it may be the lens, but dont forget to spend a few hours trying to find a option for it in the meny

SOURCE: I have a Nikon D-40 I'm currently using a 55-200

You didn't specify which fisheye attachment you're using so I can't be too specific, but most such attachments are designed to work with wide-angle lenses. In the case of the Nikon D40 that would be a lens shorter then 30mm. All the attachment is going to do with the 55-200mm lens is make it into a shorter zoom.
Try using the attachment on a shorter lens, such as the 18-55mm. Of course, for best results use a true fisheye lens instead of putting an attachment in front of another lens.

SOURCE: I have a Nikon D-40 I'm currently using a 55-200

Fisheye is the extreme of a wide angle lens. I think you are not using a fish eye lens, but a fish eye adopter. That is a lens that will "shorten" the focal length of a lens most of the time with 30 % sometimes with 50% when you put it in front of your lens. So you could make a 24 mm lens look or act like a 12 mm.
On your tele lens this only will slightly shorten the 55 mm, but even 50 % of 55 is 27 mm and can't be seen as a fish eye.
I think when you put this on a short lens, the picture you get will be round, like you were using a real fish eye.