Answer by offroader_ii
Yes it is compatible. Only AFS, AFI, HSM (Sigma brand equivalent to AFS) lenses which include a built in concentrate motor will autofocus when utilized in the D40 camera.
Other lenses might work but you won’t have any autofocus capability.
Answer by =Sunjammer=
Yes. The Nikkor 24-120mm f3.five/5.six IF-ED VR lens is totally compatible with the D40x, D40, and D80. You can examine it’s specifications at http://www.nikonusa.com/template.php?cat=1
Nikon 24-120mm f/4G ED VR AF-S NIKKOR Lens for Nikon Digital SLR
- Compact and versatile 5x common zoom lens with f/4 maximum aperture
- Extended range on Nikon DX-format D-SLR cameras
- Nikon VR II (Vibration Reduction) Image Stabilization
- Nano Crystal Coat
- 2 Further-low Dispersion (ED) Elements three Aspherical Lens Elements





