20.03.2008, 16:36
и ещё процитирую сообщение Павла Соколова с dpreview:
Forum Sigma SLR Talk
Subject I found this information about canon/sigma signal system
Posted by Pavel Sokolov [CLICK FOR PROFILE]
Date/Time 11:32:08 PM, Sunday, January 30, 2005 (GMT)
Pinout and pin functions:
Left to right, looking at the front of the body:
1. VBAT
2. P-GND
3. P-GND (pins 2 & 3 are common on the lens)
4. VDD
5. DCL
6. DLC
7. LCLK
8. D_GND
Pin Functions
VBAT - Motor power
P_GND - Motor power ground
VDD - Logic circuitry power
D_GND - Logic circuitry ground
DCL - Data from body to lens
DLC - Data from lens to body
LCLK - Clock
Data protocol: Motorola SPI; 8 bit serial; Such as the protocol used with the 68HC05 chip.
EOS 33v + BP-300 + EF 17-40mm f/4.0 L USM + EF 50/1.8 II + Юпитер 37А + Гелиос 44М-4 + МС ЗМ-5СА + Мир-1В + Cokin P
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