Nikon D300s User Manual page 371

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AF-Assist Illumination
The AF-assist illumination is available with lenses with focal lengths of
24-200mm. It can not however be used to assist the focus operation
with the following lenses:
• AF-S VR 200mm f/2G ED • AF-S VR 200-400mm f/4G ED
At ranges under 0.7 m (2ft. 4 in.), the following lenses may block the AF-
assist illuminator and interfere with autofocus when lighting is poor:
• AF Micro 200mm f/40 ED • AF-S OX 17-55mm f/2.8G ED
• AF-S VR 24-120mm f/3.5-S.6G ED • AF-S NIKKOR 24-70mm f/2.8G ED
• AF Micro 70-180mm f/4.5-5.60 ED • AF-S 28-70mm f/2.8D ED
• AF-S 17-3Smm f/2.80 ED
At ranges under 1.1 m (3 ft. 7 in.), the following lens may block the AF-
assist illuminator and interfere with autofocus when lighting is poor:
• AF-S OX VR SS-200mm f/4-5.6G ED
At ranges under 1.5 m (4ft. 11 in.), the following lenses may block the AF-
assist illuminator and interfere with autofocus when lighting is poor:
• AF-S OX NIKKOR 18-200mm • AF 80-200mm f/2.80 ED
f/3.5-5.6G ED VR II • AF-S VR 70-300mm f/4.5-S.6G ED
• AF-S VR 70-200mm f/2.8G ED • AF-S NIKKOR 14-24mm f/2.8G ED
• AF-S 80-200mm f/2.80
At ranges under 2.3 m (7ft. 7 in.), the following lens may block the AF-
assist illuminator and interfere with autofocus when lighting is poor:
• AF VR 80-400mm f/4.5-5.60 ED
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