Help please? Buying a fisheye lens?

Don`t know of any thing available in your price range for an slr nikon Trouble is lack of demand as they are specialist lenses made for scientific purposes & pro photographers & you would be looking a some £500 upwards There is however a fun lens available from Optica that could suit your purpose for around £40 If you have spent some £400 for a camera it seems a waste to get a cheap lens To much detail for here but suggest you google" Nikkor fisheye" & "Optica fisheye" for more info Best of luck

Well there's this one, but it doesn't look too good...http://www.amazon.co.uk/Opteka-Panoramic-Fisheye-Digital-Cameras/dp/B0017W70JE/ref=sr_1_1?ie=UTF8&s=electronics&qid=1248895914&sr=8-1 Don't know how it works, doesn't look to sophisticated like the proper Nikkors and Sigmas, but a proper fisheye starts at £450 and goes up. There is also this lens, this is a M42 mount manual focus lens adaptable for most mounts, here its tested on Canon 350D - EF mount, but you should be able to get it adapted for Nikon F. http://www.photozone.de/canon-eos/254-peleng-8mm-f35-fisheye-converted-to-eos-mount-test-report--review?start=2 Unfortunately the I haven't a clue where you can get a Peleng from or how much it is, but it's much less expensive than one designed for the mount.

Here are fisheye lens that fit to your budget http://www.amazon.co.uk/gp/redirect.html?ie=UTF8&location=http%3A%2F%2Fwww.amazon.co.uk%2Fs%3Fie%3DUTF8%26x%3D0%26ref%255F%3Dnb%255Fss%255Fce%26y%3D0%26field-keywords%3Dfisheye%2520lens%2520for%2520nikon%2520d40%26url%3Dsearch-alias%253Delectronics&tag=computer09-21&linkCode=ur2&camp=1634&creative=19450

You can find some cheap camera lenses here. Type "opteka" into the search box and search. http://www.camera.digitaltraders.co.uk/Camera/Camera-Lenses