Static electricity can be shocking and unexpected when exiting your car. What can you do to stop it? Television car expert Lauren Fix has more in this edition of the Car Coach.
Part of the Microprocessors glossary: Transistor-transistor logic (TTL) is a digital logic design in which bipolar transistor s act on direct-current pulses. Many TTL logic gate s are typically fabricated onto a single integrated circuit (IC). TTL ICs usually have four-digit numbers beginning with 74 or 54.
ttl= through the lens it takes information for the flash through the lens, not using simply the thyrister on the flash d-ttl did NOT start with digital.....the d stands for distance on nikkon stuff. if you use a d lens too, the flash takes distance into consideration when exposure is made. and the ittl i believe is interactive..allowing multi flash units to communicate wirelessly