Digital Concepts PTTL flash and K10D?

Started Feb 18, 2007 | Discussions thread
Kevin Roe Regular Member • Posts: 148
Re: Digital Concepts PTTL flash and K10D?

Guy Ashkenazi wrote:

I recently bought this flash unit (Digital Concepts 952AF/PEN), and

I'm thinking of getting one of these, too. Can you tell me where you found it for sale online? Also, have you been able to tell if adjusting exposure compensation on the K100D (+ or -EV) has any effect on resulting exposure when using this flash in P-TTL mode?

it works well with my K100D. It is P-TTL, judging by the ability to
see the pre-flash in the viewfinder before the mirror rises. It
works well as long as the flash is strong enough to produce a good
exposure, but underexposes more than needed when flash intensity is
less then optimal. I compared the P-TTL result against a manual 1/1
charge over a range of apertures. As long as the full charge manual
shots are overexposed, the P-TTL produces consistently good
exposures. But when I close the aperture to a point where the
manual full charge is exposed correctly, the P-TTL underexposes.
For some reason, the P-TTL doesn't deliver a full charge. This is
not a big problem, because if the shot is underexposed, you can
safely turn the flash to manual mode (a single push of a button),
without fear of overexposing.
The unit has a switch for first curtain / second curtain sync, so
you can use slow sync flash. It does not support high sync flash.
Curiously, when the flash is set to first curtain sync, the flash
icon in the viewfinder stays lit even if the flash is not ready,
causing me to sometimes shoot before the flash is charged. This
does not happen in second curtain sync mode - the flash icon blinks
while the flash is charging.
The unit supports the anti-red-eye pre flash, if this mode is set
by the camera.
The 270 degree swivel and 90 degree bounce are very good - you can
bounce directly up off the ceiling even if you point your camera at
an angle downward.
The built-in diffuser and reflector plate are very handy and
improve picture quality.
It can be used in principle as a wireless slave, but not with the
built in camera flash - it fires on the built-in flash's pre-flash.
If you have another non-P-TTL flash unit, you can use it as a
master to trigger the slave.
The manual says it should produce only 80 flashes on a set of fresh
alkaline batteries. I used a set of 2000mAh NiMH, shot 250 flash
pictures, and they are still going strong.

Overall, I'm very happy with this unit, even though it has a few
quirks, mentioned above. Looking at the specs, I believe it is
identical to the Soligor DG-420 Z mentioned above.

Post (hide subjects) Posted by
(unknown member)
Keyboard shortcuts:
FForum PPrevious NNext WNext unread UUpvote SSubscribe RReply QQuote BBookmark MMy threads
Color scheme? Blue / Yellow