Nikon D40 and D40x Compatible Sigma lenses

The New Nikon D40 and D40x are the first Nikon body without a built in auto focus motor. This means that the any lens used with the D40 and D40x will need the auto focus motor built into the lens. These lenses are called AFS lenses. Sigma has a large line of compatible AFS type lenses. Most of these lenses have the HSM motor in them with the Exception of the 80-400mm f4.5-5.6 EX DG OS (optically stabilized).

The following lenses are fully compatible with the Nikon D40 and D40X:

18-200mm f3.5-6.3 DC OS HSM - New
18-50mm f2.8 EX DC HSM - New
17-70mm f2.8-4.5 DC HSM - New
18-50mm f3.5-5.6 DC HSM - New
55-200mm f4-5.6 DC HSM - New
10-20mm F4-5.6 EX DC HSM
12-24mm F4.5-5.6
17-35mm F2.8-4 DG
50-500mm F4-6.3 DG
APO 50-150mm F2.8 EX DC HSM
70-200mm F2.8 DG MACRO
80-400mm F4.5-5.6
100-300mm F4 DG
120-300mm F2.8 DG
300-800mm F5.6 DG
30mm F1.4 EX DC HSM
150mm F2.8 EX DG
180mm F3.5 EX DG
300mm EX DG
500mm EX DG
800mm f5.6 EX DG