bobn2 wrote:
Guy Parsons wrote:
bobn2 wrote:
It was the second time Olympus has done a faux Pen-F. The first time was the E-3, which had a side flipping mirror and porro-prisms like the original Pen F. It was about twice the size, though.
No, that was the E-300, mine still works but gosh it is huge after using my E-P5 for so long. 8MP of CCD Kodak sensor. Nice results.
Beg pardon, yes, it was the E-300.
It was an curious attempt in the era of big/bulky electronics trying to fit in a certain size.
One interesting fact (for some) is that the E-300 TTL flash relied on a test flash just after the mirror got out of the way and before the shutter ran. The TTL test flash was metered off the closed shutter which was grey coloured. Then the shutter opened and the exposure flash happened when it was fully open (for first curtain sync).
The side effect of that was that the TTL and exposure flashes were only about 6 millisec apart and thus were too close together to allow S2 slave flashes to work as they need at least about 50 millisec between flashes to be able to count them reliably.
Been there done that with my E-300, S1 slave flashes failed because it triggers on the TTL pulse, S2 flashes fail because the two pulses are too close together so the S2 slave never fires.
When M4/3 came along they changed the period between TTL test pulse being measured and the first curtain flash pulse to something like 120 millisec so now S2 slaves work reliably.
Note: Memory might be hazy on the flash timing numbers as it was a long time ago, I used to record the flash pulses using a solar cell plugged into the audio input, then look at the timing of the resulting recorded signal to see the flash pulse spacing.