photoguy6405 wrote in post #8963402
As long as the "advice" is clearly qualified as second-hand hear-say, I generally have no problem with it. It would be preferable if they could quantify what they've heard, rather than be vague about it, of course.
I think it is reasonable to expect people who say things in public to limit themselves to what they personally know to be true.
But that provides more latitude that one might expect. For example, I know that there are reports that the Pentax 50/1.4 can't be adapted to the 5D without causing a mirror conflict. So, if someone asks about that, I might say, "I have heard reports that there is a conflict with the mirror in this case, so confirm that the lens will work on your camera before proceeding..." That is a statement that I personally know to be true--I have indeed heard those reports--and I think it is good advice. Not everyone might have seen the reports that I have seen.
But if I were to say, "Dude, the mirror will run into that lens", without having conducted the test myself, then I'm being deceptive, even if unintentionally.
(Of course, I have the lens and camera in question, so there is no excuse for not having tested it myself, but that's another story...)
So, for each statement I make, I ask myself, "Do I personally know this to be true?"
The sin is in presenting hearsay authoritatively as fact. When I see that, I challenge it.
Rick "thinking this falls under 'bearing false witness'" Denney