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Forum: Troubleshooting and Beginner Help
05-27-2011, 11:16 AM
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Hi All,
Just wanted to provide some feedback regarding Tamron QC and customer service.
1. I emailed same pix on this thread to Tamron, and they were quick to acknowledge the back focus was caused by the lens, but I have to pay shipping to them to have it serviced under warranty
2. Tamron acknowledged receipt of the lens, and told me via email the turn around would be around 2 weeks, but call to make sure. (and I didnt call)
3. I waited a month and then contacted Tamron, but was told that the lens needed special services and was sent to Japan
4. I received the lens after another 3 weeks, BUT...
5. I was unable to verify if the back focus problem was fixed or not because lens now cause camera to display MF (as if I enabled manual focus on camera body)
6. i emailed Tamron about this, but this time they questioned if it may be the k-x body causing this. so i went to Costco and bought a K-r 2 lens kit just to cross verify. (I feel Tamron was being unreasonable here, I told them I did not touch the k-x for about 2 months because i didn't have any other lenses, but they still questioned the k-x)
7. both kit lenses worked fine on my k-x, and Tamron caused MF on the k-r, 'nough said =P
8. Tamron emailed me a shipping label
9. after they received and verified the lens to be defective, they are now sending me a brand new lens.
10. rewind back to Aug 2010, I already did an exchange with B&H when i first bought the Tamron due to image softness.
11. so I guess I am back at square 1 (step 10?) with a new round of Tamron QC/customer service coming?
I am frustrated because I was not only out of lens for about 2 months, but I had to go out to get a k-r kit to convince them that after their "special service in Japan" they completely broke the lens!
By going with the Tamron, it caused me a lot of time and inconvenience, just thought I'd point that out.
regards,
Michael
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Forum: Troubleshooting and Beginner Help
04-04-2011, 11:42 AM
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are the experts able to determine if this is a problem with the lens or the camera body? i want to contact the appropriate support (Tamron or Pentax) to fix this problem, thanks.
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Forum: Troubleshooting and Beginner Help
04-04-2011, 11:40 AM
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went to a wedding over the weekend, took some pix with AF.S and noticed the following:
at 50mm, pictures seems to be in focus, at 17mm severe back focus problem
attached comparison pix for your reference
note: i focused on the back of the person in the middle in both pictures
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Forum: Troubleshooting and Beginner Help
03-30-2011, 10:36 AM
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for clarification:
picture 1, i focused on my dad, but notice lady walking in rear right side is in focus
picture 2, i focused on the boy's face, notice camera is focusing on another boy's pants in rear left
picture 3, i focused on my sister's face, but house across the street is in focus.
my hands were study, and my focus point is dead accurate, and i waited for both AF confirm and SR confirm.
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Forum: Troubleshooting and Beginner Help
03-30-2011, 10:31 AM
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Dear fellow Pentax experts,
I suspect my camera system (pentax K-x and Tamron 17-50 F/2.8) is having BF problem, and seek your advise.
it gets worse as I get closer to F/2.8
attached 3 photos for your reference.
my questions are:
1. is this back focus?
2. is this a problem with the lens, or with the camera?
3. can k-x hidden menu fix this? or do i have to send the lens/camera in for repair?
thanks in advance
Michael
camera settings:
Aperture mode
AF.A
center focus
pictures taken with both AF lock confirmed and Shake Reduction confirmed
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