4 pin Nikon MC-DC1 proprietary connector
This is proprietary (non-standard, product specific ) connector. A proprietary connector is the special connector that can only be used with a certain device(s).
- Nikon D70s, D80 MC-DC1 focus/shutter connector pinout for Nikon D70s, D80
This is the 4 pin Nikon MC-DC1 proprietary connector
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