D300 built-in flash, Part 1: Blinding speed

Started Dec 25, 2008 | Discussions thread
MOD TOF guy Forum Pro • Posts: 13,758
Re: D300 built-in flash, Part 1: Blinding speed

Thank you for sharing these results with us.

Questions:

  • the initial oscillations: you know it cannot be light measurement and it is RF noise because the signal goes both positive and negative (the photodiode response has to be of the constant sign, whether it is positive or negative, depending on how the diode is connected). Is this correct? How is the RF noise picked up?

  • this is all in manual mode, therefore we do not see a pre-flash. Is this correct?

Can't wait for part 2. Thank you again.
Happy Holidays!
--
Thierry

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