mike wilson wrote:
---- "P. J. Alling" <[email protected]> wrote:
I've tried that still no joy with the first unit. They do, well my
newer AF280T does actually seem to talk to a limited extent, it actually
sets the shutter speed and aperture in program mode with the K20D, the
first doesn't give correct exposures as an auto flash on the *ist-Ds on
either red or green settings though TTL flash works just fine. It's
completely weird. Especially if the AF280 isn't supposed to talk to the
K20D at all...
Maybe you have some dirt on your flash sensor, in the green ring at the front.
I was hoping that might be the case Mike, but I just examined the sensor
opening closely it looks like a simple hole in the case, on both
AF280Ts, and didn't see any obvious dirt. I tried a blast of canned air
anyway. I just tested the damned thing again, still no joy. Most
inexpensive flash units I've examined used a different size opening to
control the light light to the sensor, I think the AF280T actually has
an electrical switch, (I really don't want to open the case to find out,
if it works on at least one mode, I know I'm capable of rendering it
entirely inoperable, I've done that before), The fact that it seriously
underexposes in red mode, (and the proper exposure lamp lights), and
dumps the entire charge in the capacitor in green mode (with no proper
exposure light), seems to point to a bigger problem than just dirt, or
so it seems to me. Too bad the thing isn't under warranty. My target
is only about 6 feet away, well within the operating range for either mode.
William Robb wrote:
----- Original Message ----- From: "P. J. Alling"
Subject: AAAARRRGGGG Equipment Follies
I have to upgrade my Flash units, but I figured I'd do a little
testing just to see how badly this has to be done. So I pop a AF280T
onto the K20D set the camera to [Green] at ISO 200, then set the
Flash to the green range. The camera sets the proper f stop. Nice,
at least some of the automation works. Take a test shot, horrible
over exposure, not good. Try the red range... Horrible
underexposure, damn, this thing was working only a couple of weeks
ago. Put said unit on the *ist-Ds ISO 400 TTL mode, exposure is
more than acceptable. WTF? Set the *ist-Ds to 200 ISO and the flash
to the Green Range, same results as with the K20D. Damn I don't
think I've ever used this flash off TTL or Manual, same with the
other AF240T... So I drag that unit into the test, yep works fine in
all modes on the *ist-Ds, gives good exposures on both red and green
ranges with the K20D. I've had a Bad flash for years and never knew
it! Damn that hoovers. My backup flash only works on my backup
camera(s).
The AF280T and AF240T won't talk to digital only flash controls.
Try setting the camera up in manual and use the flash as an auto flash
and it should be good.
William Robb
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drinking; he can ruin himself with gambling. If he does he is certainly a damn
fool, and he might possibly be a damned soul; but if he may not, he is not a
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