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Message: <blockquote data-quote="crycocyon" data-source="post: 317333" data-attributes="member: 13076"><p>From the D90 manual:</p><p></p><p></p><p><span style="font-family: 'sans-serif'">Auto and scene modes are only available with CPU lenses.</span></p><p><span style="font-family: 'sans-serif'">If these modes are selected when a </span></p><p><span style="font-family: 'sans-serif'">non-CPU lens is attached, the shutter release will be disabled.</span></p><p><span style="font-family: 'sans-serif'"></span></p><p><span style="font-family: 'sans-serif'"><span style="font-family: 'sans-serif'">Non-CPU lenses can only be used in exposure mode M, when aperture can be adjusted manually </span></span></p><p><span style="font-family: 'sans-serif'"><span style="font-family: 'sans-serif'"></span></span></p><p><span style="font-family: 'sans-serif'"><span style="font-family: 'sans-serif'">using the lens aperture ring (in other modes, the shutter-release will be disabled).</span></span></p><p><span style="font-family: 'sans-serif'"><span style="font-family: 'sans-serif'">The camera exposure meter, auto ISO sensitivity control, and variety of other features can not be used.</span></span></p><p><span style="font-family: 'sans-serif'"><span style="font-family: 'sans-serif'"></span></span></p><p><span style="font-family: 'sans-serif'"><span style="font-family: 'sans-serif'">If non-CPU lens is used, or if Auto-area</span></span></p><p><span style="font-family: 'sans-serif'"><span style="font-family: 'sans-serif'"><span style="font-family: 'sans-serif'"> is selected for AF- area mode as described on page 173, camera will meter center focus point.</span></span></span></p><p><span style="font-family: 'sans-serif'"><span style="font-family: 'sans-serif'"><span style="font-family: 'sans-serif'"></span></span></span></p><p><span style="font-family: 'sans-serif'"><span style="font-family: 'sans-serif'"><span style="font-family: 'sans-serif'">See page 250 for compatible lenses. </span></span></span></p><p><span style="font-family: 'sans-serif'"><span style="font-family: 'sans-serif'"><span style="font-family: 'sans-serif'"></span></span></span></p><p><span style="font-family: 'sans-serif'"><span style="font-family: 'sans-serif'"><span style="font-family: 'sans-serif'"></span></span></span></p><p><span style="font-family: 'sans-serif'"><span style="font-family: 'sans-serif'"><span style="font-family: 'sans-serif'"></span></span></span></p><p><span style="font-family: 'sans-serif'"><span style="font-family: 'sans-serif'"></span></span></p><p><span style="font-family: 'sans-serif'"></span></p></blockquote><p></p>

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