Nikon D7000 manual Lens Tune-up

Chapter 11 ■ Working with Lenses 387

Lens Tune-up

The key tool you can use to fine-tune your lens is the AF Fine tune entry in the Setup menu, shown in Figure 11.21. You’ll find the process easier to understand if you first run through this quick overview of the menu options:

■AF fine tune (On/Off ). This option enables/disables AF fine-tuning for all the lenses you’ve defined using the menu entry. If you discover you don’t care for the calibrations you make in certain situations (say, it works better for the lens you have mounted at middle distances, but is less successful at correcting close-up focus errors) you can deactivate the feature as you require. You should set this to On when you’re doing the actual fine-tuning.

■Saved value. This setting lets you tune the autofocus calibration for the current CPU-chipped lens (virtually all Nikon-brand autofocus lenses) mounted on the D7000. When you first fine-tune a lens, the saved value will be 0 (zero). You can press the multi selector up/down buttons to choose a value between +20 and –20. Positive numbers move the focal point farther from the camera, and would be used if your lens consistently suffers from front focus problems. Negative numbers move the focal point closer to the camera, and would be used if your lens is plagued with consistent back focus. The value is relative, and doesn’t correlate to any particular distance or percentage.

Figure 11.21

The AF Fine tune menu.