Toine wrote: > P-TTL ringflashes for Pentax don't exist (I have never found one). The > TTL models won't work on K10D etc. > Perhaps I need another clarification.
When I said "digital interface" I wasn't referring to the flash metering setup on the digital bodies, but rather digital encoding of the exposure information etc. exchanged between the body and the flash. As far as I understand, all Pentax AF bodies support such a digital transfer, but that does not necessarily mean they have a P-TTL interface; P-TTL also refers to how the light is metered - but please correct me if I'm wrong. > The ringflash I use is a no name version like this > http://cgi.ebay.com/ws/eBayISAPI.dll?ViewItem&rd=1&item=160146845797 > > They vary in branding, logos etc and sometimes as cheap as $50. These > units can do Autoflash which is a little strange on a ringflash. Why? > I > never use Autoflash and set the unit to full manual. resulting in good > exposures at f16, 100 ISO for a F100macro at 1:1. > That's useful info, as I was also sort of wondering how well these work with the F-100 macro. I was worried that the operation on a lens with 58mm filter size would be problematic, based on the fact that the units have adapter rings for only up to 55mm. Thanks. - Toralf > This works very easy even if a PTTL ringflash was available I doubt I > would want one > > > > On 8/24/07, Toralf Lund <[EMAIL PROTECTED]> wrote: > >> The thread started by Jostein a few days ago made me realise that I just >> have to buy a ring flash. I'm looking at the cheap options, though, >> specifically I very nearly ordered a Vivitar 6000 yesterday, but then I >> thought I should perhaps try to find out more about it first. >> Unfortunately, not a lot of information seem to be available online, but >> didn't someone on the list mention using such a unit a while back? >> I mainly have two questions about it: >> >> 1. The specs say this unit is for Pentax AF. Does that mean that it >> uses the newer digital TTL mode and is incompatible with e.g. my >> MESuper? >> 2. Does this flash also have "traditional" auto operation, or does it >> support TTL automation only? >> >> Also, if any of you lot have tested another, similar unit, please feel >> free to share your experiences... >> >> - Toralf >> >> >> -- >> PDML Pentax-Discuss Mail List >> PDML@pdml.net >> http://pdml.net/mailman/listinfo/pdml_pdml.net >> >> > > > -- PDML Pentax-Discuss Mail List PDML@pdml.net http://pdml.net/mailman/listinfo/pdml_pdml.net
