ALens f-number

The f-number given in lens names is the maximum aperture of the lens.

ACompatible Non-CPU Lenses

When using non-CPU lenses and accessories, rotate the camera mode dial to A or M and set aperture using the lens aperture ring. In other modes, the shutter-release is disabled. Non- CPU lens data (0 149) can be used to enable many of the features available with CPU lenses, including color matrix metering; if no data are provided, center-weighted metering will be used in place of color matrix metering, while if the maximum aperture is not provided, the camera aperture display will show the number of stops from maximum aperture and the actual aperture value must be read off the lens aperture ring.

DIncompatible Accessories and Non-CPU Lenses The following can NOT be used with the D7100:

•TC-16AS AF teleconverter

•Non-AI lenses

•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

•180–600mm f/8 ED (serial numbers 174041–174180)

•360–1200mm f/11 ED (serial numbers 174031–174127)

•200–600mm f/9.5 (serial numbers 280001– 300490)

•AF lenses for the F3AF (AF 80mm f/2.8, AF 200mm f/3.5 ED, AF Teleconverter TC-16)

•PC 28mm f/4 (serial number 180900 or earlier)

•PC 35mm f/2.8 (serial numbers 851001– 906200)

•PC 35mm f/3.5 (old type)

•Reflex 1000mm f/6.3 (old type)

•Reflex 1000mm f/11 (serial numbers 142361–143000)

•Reflex 2000mm f/11 (serial numbers 200111–200310)

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