On 4/9/2012 12:15 PM, Walt Gilbert wrote:
I managed to find the correct dedicated module for $18.99 shipped. The
cheapest otherwise was $40.00 + shipping. I had enough in my PayPal
account to get it, and since I don't have an external flash, I figure
it's a good idea to go ahead and get the module.
Here's what the product info on the module states:
PRO2708 PROMASTER FTA 5000 AF TTL FL MODULE/PENTAX PROMASTER 5000
Series FTA modules allow for TTL, fully automatic, and manual
operation* with auto focus SLR cameras. It also features an infrared
focusing assist lamp to help you get sharp crisp pictures in low
light. The FTA module works on ANY PROMASTER 5000 series flash
including the 5750DX and 5550DX digital flashes. *Features are
limited to those supported by your particular camera model. Pentax AF
- Code # 2708 Pentax AF1/SFX, SF1N, SF10/SF7, etc.
Anybody know of any reason why this shouldn't work on my K20D? I'm
having a hell of a time finding anything about the compatibility.
-- Walt
On 4/9/2012 8:55 AM, p. j. alling wrote:
Hum, it seems I was incorrect, never having seen a Maxxum 7000, the
first alpha mount Minolta I handled was a 7000i which had the "new"
flash shoe as well as the new lens mount. Sorry about the incorrect
information.
On 4/9/12, Walt Gilbert<ldott...@gmail.com> wrote:
On 4/9/2012 7:39 AM, Brian Walters wrote:
Quoting Walt Gilbert<ldott...@gmail.com>:
Actually, after looking again, it does appear to be a standard hot
shoe. When I first looked at it before, it appeared that one of the
electronic contacts on the flash was off-set a little more than the
contacts on the camera hot shoe. But, after looking at it again, it
looks like they do line up after all.
As for the discharge voltage, that I don't know. The only
documentation that came with it is repair and service receipts for
the camera. I'll have to see if I can find it somewhere on the web.
Thanks for the heads-up!
According to this page:
http://www.botzilla.com/photo/strobeVolts.html
....the Promaster has a trigger voltage of 4-5 volts.
Based on this discussion, that's probably OK - but it's your camera
:-)>
http://www.pentaxforums.com/forums/pentax-flashes-lighting-technique/87679-flash-trigger-voltage-pentax-official-answer.html
Thanks, Brian!
Yeah, that looks safely within the voltage range of the K20D. I guess
the issue at this point is getting the correct dedicated module for it.
I've found a little info on that and so far the cheapest I've been able
to find is $40.
Gonna have to do some cogitatin' on this.
It says it's TTL not P-TTL. If that's true and it doesn't support
P-TTL, unless it has a built in sensor or some sort of manual control
you'll get full power on automatic, or full power on manual. In that
case you might just as well use it with the Minolta foot as a fully
manual flash.
-- Walt
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