hello have a Nikon d40 and really did not use it till recently but using it more and more so will this lenses fit the body? Is it a good lenses?

The Nikon ED AF-S DX NIKKOR 55-200 mm f/4-5.6G Telephoto Zoom Lens is a high-powered standard DX zoom lens with enhanced telephoto capabilities and a Silent Wave Motor (SWM) for use with the Nikon DX format digital SLR cameras.

Capture stunning photos from a distance

The 55-200mm zoom range is equivalent to an 82.5-300mm lens in 35mm format and it offers maximum versatility.

and where is a plain English simple place to find out what the camera does in manual setting?

Thanks

Yes it will fit fine as its an AF-S lens so it contains the auto focus motor that your D40 needs. I’ve got one and I’m happy with it although I don’t have anything to compare it with to say if it bettor or worse if you get my meaning!

All you need to know here

thanks any alternatives in the 18mm to 200mm lenses?