The Datacolor SpyderLensCal™ provides a fast, reliable method of measuring the focus performance on your camera and lens combinations. It allows photographers to obtain razor-sharp focusing or check to see that their lenses are working at their peak performance. This device is compact, lightweight and durable, with integrated level and tri-pod mount.
 

The problem:

Photographers have enjoyed the benefit of autofocus for 25 years now, but many still struggle with its accuracy and repeatability.

The solution:

Many newer DSLR cameras such as the Canon 5D MkII/7D /1D MkIV and the Nikon D7000/D300s/D700/D3s/D3x now offer a method to correct this issue: they allow you to store auto-focus correction data for several of your most important lenses

Requirements

• DSLR or other camera with capability to store lens auto-focus corrections
• Auto-focus lenses capable of being driven by this camera
• No OS requirements, as the tool works entirely within the camera's menu

Cameras

Supports autofocus adjustments:

• Canon (50D, 7D, 5DMkII, 1DMkIII, 1DMkIV, 1DsMkIII, 1DIV)
• Nikon (D7000, D300, D300s, D700, D3, D3s, D3x)
• Sony (A850, A900)
• Olympus (E-30, E-620)
• Pentax (K20D, K7D)

You can Check the autofocus on any camera and lens combination!

For other Cameras that support & store autofocus adjustment please refer to your users manual.