Doug Franklin wrote: >Mark Roberts wrote: > >> Doug Franklin wrote: >> >>> Well, in my book, it's a fix, because it occurred due to them trying to >>> reverse engineer the protocol and command set instead of licensing it. >> >> I'm told that Pentax *doesn't* license it. > >That's opposite of what I was told. I've twice, around when the MZ-S >came out, been told that Tokina and Tamron both licensed the interface >from Pentax while Sigma didn't, by way of explaining why Sigma had far >more compatibility problems. Granted, we were speaking specifically of >lenses rather than flashes.
Tamron and Tokina got the probably skinny on lens compatibility because they both have been OEM suppliers for Pentax lenses. It's a lot easier to reverse engineer something after you've seen the real spec ;-) My Pentax contacts told me specifically that they don't license this stuff. I expect the complexity of dealing with flash communications, especially during the past 5-6 years of digital transition, is why Metz, for example hasn't produced a Pentax P-TTL flash. Granted, market share has a little to do with it, but for a company that specializes in flashes, there is probably more to it than that. -- PDML Pentax-Discuss Mail List [email protected] http://pdml.net/mailman/listinfo/pdml_pdml.net
