I’ve just upgraded from a D7000 to a D750 and 24-120mm VR lens kit. All my lenses are compatible apart from my Sigma 10-20mm wide-angle zoom. Is there any way I can keep using it?
Jason says... Unlike with Canon D-SLRs, you can use DX (APS-C format) lenses on FX (full-frame) camera bodies. This includes your Sigma 10-20mm. The only catch is that the smaller image circle produced by DX lenses won’t be large enough to cover the whole image sensor. It’s easy to select the DX Crop mode from the Image Area options in the Shooting menu. This will automatically crop images as you take them, reducing the maximum megapixel count from 24.3MP to 8.75MP. The amount of cropping is severe, so you may prefer to stick with the full FX image area and crop your photos manually. This will give you images with a higher megapixel count, especially when using your Sigma lens at or near the long end of its zoom range.
Sticking with FX mode and cropping your photos manually means that you can often retain a larger area of the image