Having problems with your Nikon D40x Digital Camera ?

I have been given a 100-300mmF4.5-6.7DL Sigma lens but it will only work in manual focas AF but does work on a friends Nikon is that because my D40X has no AF motor.

Answers :

That is exactly why the auto-focus (AF) does not work with that lens on this camera. The D40, D40X, D60, D3000, D3100 and D5000 lack an AF motor built into the camera. These cameras will require that the lens have the AF motor to work as expected.

You can review a complete list of lenses (as of 8/2010) that have a built in AF motor here.

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Repair Help & Product Troubleshooting for Nikon D40x Digital Camera

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