Inside the EF 75-300/4-5.6

[PCB top] Larger image
The PCB with the lens microcontroller

[PCB bottom] Larger image
The PCB with the contact for flex strips
[Focus unit] Larger image
The focus unit with DC motor and gear wheels
[EMD] Larger image
The EMD (Electo-Magnetic Diaphragm) unit
[EMD detail] Larger image
The home position sensor in the EMD
[Distance encoder] Larger image
The distance encoder pattern
[Contacts] Larger image
The contacts for the distance encoder
[Parts] Larger image
The small parts...
Look inside another lens: EF 28-105 inside
since Feb 20 1998

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