Hi Walt, Not sure if this particular question was answered already, I am a bit behind on my PDML messages, but anyway ...
On Mon, 09 Apr 2012 11:15:02 -0500 Walt Gilbert wrote: > >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. Well there was a big change in TTL/PTTL flash control when going to digital bodies with Pentax, taking the flash control from an analog to a digital protocol as well. And while the first DSLRs still could do both (IstD etc) the later ones only support the digital flash protocol (PTTL). So that makes it quite likely that the module above, created for the filmbodies of the early 1990's does analog TTL only, and can only work in manual or 'auto' where the flash measures itself. (if the promaster has that capability) That said, although I don't use flash that often anymore (K5), I often had more consistent results with manual/auto flashes than with PTTL :-) Regards, JvW ------------------------------------------------------------------ Jan van Wijk; http://www.dfsee.com/gallery -- PDML Pentax-Discuss Mail List [email protected] http://pdml.net/mailman/listinfo/pdml_pdml.net to UNSUBSCRIBE from the PDML, please visit the link directly above and follow the directions.
