Macro Encoder 0615.jpg by Pete Ganzel

Pete Ganzel | all galleries >> Tinkering >> Partial Disassembly of Maxxum 50mm f/2.8 Macro > Macro Encoder 0615.jpg


14-NOV-2005

Macro Encoder 0615.jpg

There is a distance encoder at the back of the outer focus tube.
There is a corresponding contact wiper on the inner focus tube.
Again, appears to be four bit binary.

Minolta DiMAGE 7
1/125s f/5.6 at 50.7mm iso100 with Flash full exif

other sizes: small medium original auto

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comment |

Vladimir		31-May-2009 11:31
Hi Pete, do you know what is the distance encoder here used for? I thought it's present only in (D) lenses, while this one is not. I am thinking of replacing chip in my old Tamron 90/2.8 (with 5 pins), and I thought the chip would be simply soldered to the pinout just like in Minolta 50mm primes (1.7 and 1.4), but it appears to be similar to this 50mm macro

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