Test results on bounced Metz flash in A mode

Started Jun 1, 2006 | Discussions thread
JensR Forum Pro • Posts: 17,971
Re: Update results

Hi Corry!

So, I read with great relief that you managed to get a 40MZ2 to
work correctly in auto-flash, by covering a pin on the SCA3701
adapter. I guess the one that has to be insulated is the one that
communicates the TTL feedback, but which one is it ?

I do not fully remember, but I think it was (only) the "digital" one, which you can see on Bojidar's site:

BTW, to my knowledge, noone tested a 3701 in Auto mode on a K10D, but tests on former Pentax dSLRs show the error and so it is unlikely that it went away. But, as the K10D uses a new ISO range, it could be that this solved the problem somehow.

By covering that "bad" pin, will the ISO setting, aperture and
focal length still be transmitted from the camera to the Metz flash

No. Basically, this was the idea behind the test. The 3701 is castrated to a 372 adapter (former aTTL adapter of the SCA 300 system). The error goes away when the "extra" digital info is removed.

I would have to go for
the 3702, since you mentioned that it didn't have this problem.

That's correct.

(But, then I would rather wait for 3703, which hopefully will be
born one day!)

Don't hold your breath

You may add this little detail on your excellent web-page.

Thanks I'll do that, but as wlachan said in this thread: It doesn't make much sense: The castrated 3701 will behave like a 372 on the *ist D and *ist DS and like a 301 (3001) on the non-TTL bodies. The 301 costs next to nothing, if you don't already have it.

there any other tricks related to the use of 40MZ2 with a recent
Pentax DSLR ?

Philzucker uses various 40MZs wirelessly. Apart from that I can't think of much "tricks".

You may also have a look at the following post that states that
40MZ2 works fine in A with 3701.
Maybe Thommy only worked with low ISO and large apertures

As the K10D generally uses one stop lower ISO, this may well be the case. As I implied above, it would be interesting to test a 3701 on a K10D.


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