Pentax smc DA* 50-135mm SDM Issue

Please… where did you get the anecdotal evidence? Does that include failures after the '1 year warranty?

”Pentax's biggest issue with SDM was managing peoples expectations rather than any inherent failure in design, anecdotal evidence points to about a 4-8% higher failure rate fro the 16-50/50-135 in their early releases again pretty much in line with new technology releases.

Failure rates now seem to be in line with every other OEM .

Other forum member have had significantly worse experience than me and some significantly better, That is life , I wouldn't base my purchasing decisions based on either rather as I did research the technology and understand the real risks.

You get the same reports from dissatisfied users for any brand you just need to look

Her you go for Sigma

"I had a Sigma EX 70-200 f2.8 hsm II that had the AF motor repaired 3 times so I sold it before it was out of warranty and bought a Tamron instead."

First off anyone on this forum for a few years knows that the failures of the first two SDM zooms were much higher than any previous pentax lens (and any lens since)… and that Pentax never officially acknowledged the problem…

But the real issue has always been, since it was an obvious issue, why not extend the crappy 1 year warranty? Show your customer base that you respect them and will take care of a design flaw on your Flagship lenses.

In your Sigma example, it is an EX lens which I believe has a total of 4 years warranty and of course all Tamron’s have a 6 year warranty…
gus