Nikon Df - Manual (Page 341)

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A
AF-S/AF-I Teleconverters
The table below shows the focus points available for autofocus and
electronic rangefinding when an AF-S/AF-I teleconverter is attached.
Note that the camera may be unable to focus on dark or low-contrast
subjects if the combined aperture is slower than f/5.6. Autofocus is not
available when teleconverters are used with the AF-S VR Micro-Nikkor
105mm f/2.8G IF-ED.
1 Focus data for focus points other than the center focus point are obtained
from line sensors.
2 Single point AF is used when 3D-tracking or auto-area AF is selected for
AF-area mode (0 62).
3 Autofocus not available.
D
Incompatible Accessories and Non-CPU Lenses
The following can NOT be used with the Df:
• TC-16AS AF teleconverter
• Lenses that require the AU-1
focusing unit (400mm f/4.5,
600mm f/5.6, 800mm f/8,
1200mm f/11)
• Fisheye (6mm f/5.6, 7.5mm f/5.6,
8mm f/8, OP 10mm f/5.6)
• 2.1cm f/4
• Extension Ring K2
• AF lenses for the F3AF (AF 80mm
f/2.8, AF 200mm f/3.5 ED, AF
Teleconverter TC-16)
• PC 35mm f/3.5 (old type)
• Reflex 1000mm f/6.3 (old type)
Accessory
Maximum
aperture of
lens
Focus points
TC-14E,
TC-14E II
f/4 or
faster
f/5.6
TC-17E II
f/2.8 or
faster
f/4
f/5.6 —
1
2
3
TC-20E,
TC-20E II,
TC-20E III
f/2.8 or
faster
f/4
f/5.6 —
TC-800-
1.25E ED
f/5.6
Accessory
Maximum
aperture of
lens
Focus points
1
3
2