Nikon 1546 User Manual (en)

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AF-Assist Illumination
AF-assist illumination is not available with the following lenses:
• AF-S NIKKOR 14–24mm f/2.8G ED
• AF-S VR 70–200mm f/2.8G ED
• AF-S 80–200mm f/2.8D ED
• AF-S VR 200mm f/2G ED
• AF-S VR 200–400mm f/4G ED
At ranges under 1 m (3 ft. 3 in.), the following lenses may block the AF-assist illuminator and 
interfere with autofocus when lighting is poor: 
• AF-S 17–35mm f/2.8D ED
• AF-S DX 17–55mm f/2.8G ED
• AF-S DX NIKKOR 18–105mm f/3.5–5.6G ED VR
• AF-S DX VR 18–200mm f/3.5–5.6G ED
• AF-S NIKKOR 24–70mm f/2.8G ED
• AF-S VR 24–120mm f/3.5–5.6G ED
• AF-S 28–70mm f/2.8D ED
• AF-S VR Micro 105mm f/2.8G ED
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Calculating Picture Angle
The size of the area exposed by a 35mm camera is 36 × 24 mm. The size of the area exposed 
by the D5000, in contrast, is 23.6 × 15.8 mm, meaning that the picture angle of a 35mm 
camera is approximately 1.5 times that of the D5000. The approximate focal length of lenses 
for the D5000 in 35mm format can be calculated by multiplying the focal length of the lens 
by about 1.5. 
Picture size (35mm format)
Lens
(36 × 24 mm)
Picture diagonal
Picture size (D5000)
(23.6 × 15.8 mm)
Picture angle (35mm format)
Picture angle (D5000)