Can Pentax make A Decent Lens? Ricoh have not fixed QC issues...

Started May 18, 2014 | Discussions thread
DAVID MANZE Veteran Member • Posts: 5,273
Re: Can Pentax make A Decent Lens? Ricoh have not fixed QC issues...

Bill Robb wrote:


Bill Robb wrote:

To be fair, I have made a point of staying away from the lenses that are known to have problems. My point was though that it is so close to impossible for a person to buy 20 lenses and get 19 that are defective that he must be doing something himself.

Set up a test that guarantees a bad result and see how may lenses turn in bad results.

Luckily I didn't have to convince Tamron or Sigma, they acknowledged the problems.

Did they acknowledge a problem or did they just blindly accept returns until you got tired?

Hi Bill,

The tests that I use amount to, mounting the lens on the camera and checking general functionality and AF, then going out into the countryside and taking distant views.

No brick wall shots or tape measures, sliding scales, brackets, or angled or convoluted theoretical mumbo jumbo.

Just traditional shooting, I shoot a lot of landscapes and if there's a decentering problem distant views show it up better than any other method.

Dave's clichés

 DAVID MANZE's gear list:DAVID MANZE's gear list
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