Originally posted by Rondec If you buy an off brand flash or lens, you do risk the possibility that it won't work forever in the future. But you are paying less money. Everything is at least a little bit of a risk. I have chosen to go with Pentax brand items, even if their are cheaper options out there -- flash, grip, lenses -- but I think most users wouldn't blame Pentax if Sigma lenses suddenly didn't work as advertised. It is incumbent on Sigma in such a situation to fix it, not Pentax. If Sigma was actually paying Pentax a licensing fee, they would be abreast of changes coming to the firmware and their lenses would work better.
Well, Sigma sells their dock by which you can upgrade most of the modern Sigma lenses yourself, so it probably wouldn't be too much of a problem in that particular case, assuming Sigma has proper support for the Pentax platform.
But you are right, of course, that it is a risk and you should know that before buying a 3rd party accessory. But reading some comments, some people seem to think Pentax wants to break compatibility, just for the sake of breaking compatibility.
---------- Post added 12-19-2015 at 03:08 PM ----------
Originally posted by beholder3 [COLOR=Silver][COLOR=Black]
Even though you have a right to believe in Santa's existence these days, that it beyond naive.
Great. If you have a less insulting comment to make, send me a PM and I might consider posting here again. You are breaking compatibility with my protocols, thereby making me unhappy and causing me to not contribute here anymore.