How did it happen? I don't know and it shouldn't have happened as I've worked/repaired with fragile electronics for over 3 decades but yet here we are. A story of interest and what makes up the mechnical-CPU enabled internals of a Nikkor AF-D lens.
Sunday, 16 August 2026
Killing a Nikkor AF-D lens cpu: whats behind a Micro-Nikkor 105mm f/2.8 AF-D internals?
This is a short Dunning-Kruger tale about an attempted repair of a Nikkor AF-D lens that was misreporting its max aperture and somehow killing the CPU - the dead CPU means that the DSLR body no longer recognises a CPU enabled lens which means no autofocusing (even on motor-enabled bodies), no metadata and no body controlled aperture - only dumb manual focus operations available.
How did it happen? I don't know and it shouldn't have happened as I've worked/repaired with fragile electronics for over 3 decades but yet here we are. A story of interest and what makes up the mechnical-CPU enabled internals of a Nikkor AF-D lens.
How did it happen? I don't know and it shouldn't have happened as I've worked/repaired with fragile electronics for over 3 decades but yet here we are. A story of interest and what makes up the mechnical-CPU enabled internals of a Nikkor AF-D lens.
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