Nikon D2Xs manual Non-CPU Lenses, Specifying Lens Focal Length, 131, Specifying Lens Data

Non-CPU Lenses

Specifying Lens Data

By specifying lens data (lens focal length and maximum aperture), the user can gain access to a variety of CPU lens functions when using a non-CPU lens. If the focal length of the lens is known:

•Automatic power zoom can be used with attached Speedlights

•Lens focal length is listed (with an asterisk) in the playback photo info dis- play

When the maximum aperture of the lens is known:

•The aperture value is displayed in the top control panel and viewfinder

•Flash level is adjusted for changes in aperture

•Aperture is listed (with an asterisk) in the playback photo info display

Specifying both the focal length and maximum aperture of the lens:

•Enables color matrix metering (note that it may be necessary to use center- weighted or spot metering to achieve accurate results with some lenses, including Reflex-Nikkor lenses)

•Improves the precision of center-weighted and spot metering, i-TTL Bal- anced Fill-Flash for Digital SLR, and Multi-Sensor Balanced Fill-Flash for Digital SLR

Specifying Lens Focal Length

Lens focal length can be specified using the Non-CPU lens data option in the shooting menu or by pressing the FUNC. button and rotating the main command dial. The following settings are available:

•6–45 mm: 6, 8, 13, 15, 16, 18, 20, 24, 25, 28, 35, 43, and 45 mm

•50–180 mm: 50, 55, 58, 70, 80, 85, 86, 100, 105, 135, and 180 mm

•200–4000 mm: 200, 300, 360, 400, 500, 600, 800, 1000, 1200, 1400, 1600, 2000, 2400, 2800, 3200, and 4000 mm

The Non-CPU Lens Data Menu

1 Highlight Non-CPU lens data in the shooting menu ( 168) and press the multi selector to the right.

Focal Length Not Listed

If the correct focal length is not listed, choose the closest value greater than the actual focal length of the lens.

Taking Photographs—Non-CPU Lenses

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