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06-25-2008, 01:59 PM   #1
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Tamron 17-50 or DA* 16-50

I burnt my hand by buying DA* 16-50 and returned it to the seller and went with 2 lens combination (Pentax 12-24 and Sigma 24-70) because the shop didn't have any more DA* 16-50 in stock. They also didn't have any Tamron 17-50.

I am really happy with these two lenses and covers a lot more range (for more money !!!). Over the last weekedn, I took more than 500 shots with these two lenses and they seems to be great (atleast for my eyes)

Question: How is Tamron 17-50 compared to DA* 16-50? I read some threads about comparing these two, but trying to get more info on this. I have the following questions:

1) What is the probability that we get a good copy of DA* 16-50. Did Pentax fixed all the issues, so that all the new copies are good (compared to last years models)

2) In terms of image quality which one is better Pentax DA* 16-50 or Tamron 17-50? I heard people claiming Tamron is sharper than 16-50 even at 17mm f/2.8.

3) Is Tamron build quality is so much lower than Pentax ?

Thanking you in advance,

-MC

06-25-2008, 02:29 PM   #2
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The million $$ questions...
06-25-2008, 02:43 PM   #3
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I think you really have to try them both out. I don't think it's a fair statement to say either Tamron or Pentax has every quality issue fixed. I think given a good copy of both you would be hard pressed to tell the difference for IQ - then it comes down to what is important. DA* gives you weather sealing and SDM. Is it worth the extra $$ for some yes for others no.

So I am not sure you are going to get a definitive answer. People can only suggest what they did in similar circumstances. I went for the DA* 16-50.
06-25-2008, 02:49 PM   #4
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i personaly think that internally focusing lenses are better and more rugged than those that "zoom out"

particulary when you drop one.. having a solid cylindrical exterior means less chance of something getting bent.. like the extended tube.

plus you get SDM and Weather Sealing.

personaly i would not be afraid of falling off a boat with a weather sealed lens and body.

06-25-2008, 04:28 PM   #5
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QuoteOriginally posted by Gooshin Quote
personaly i would not be afraid of falling off a boat with a weather sealed lens and body.
I'll try to stay dry and take pictures of you falling...
In real life, I don't mind rain on my cameras WHEN IT CAN'T BE AVOIDED, but I'd be worried if it fell in water. It would hopefully survived, but the weather sealing is not made for underwater photography.
06-25-2008, 04:41 PM   #6
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How does the Sigma 18-50/2.8 Macro compare to these two lenses?
06-25-2008, 05:12 PM   #7
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QuoteOriginally posted by maxwell1295 Quote
How does the Sigma 18-50/2.8 Macro compare to these two lenses?
Thats a question which I tried to get answer from many people. All the replies which I got are telling that Tamron 17-50 is shaper than Sigma. Somehow the Sigma 18-50 is not getting the same attention as the oother two (Pentax 16-50 and Tamron 17-50)

-MC
06-25-2008, 07:17 PM   #8
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I used to have the 16-50 and now own the 17-50. In terms of built, the 16-50 is so much better as the 17-50 does feel a little like the 18-250 ..

Of course, 16-50 is also weather proof, and that makes quite a difference.

But I like the zoom ring better in the 17-50. I can't understand why the focus ring is so much bigger than the zoom ring in the 16-50 that makes it quite difficult to extend the lens. Maybe it's something else.

I also tried the Sigma 18-50 (a friend of mine has it), and thought the built from my perspective is in this order 17-50 < 18-50 < 16-50.

06-25-2008, 07:24 PM   #9
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I've got the Tamron 28-75, and the DA* 16-50, and I can tell you the DA* does noticably beat the Tamron in image quality. My girlfriend, who I handed down the Tamron to, gets somewhat annoyed about the difference, and even more annoyed when I tell her she got a $500 lens for free so put up with it.

From reports the Tamron 28-75 is about on par with the 17-50. I just bought the 17-50 for the girlfriends mother actually, I should see if I can take some comparison photos sometime, would be interesting.

All 3 are good lenses though.
06-25-2008, 08:32 PM   #10
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QuoteOriginally posted by Bernard Yeo Quote
I used to have the 16-50 and now own the 17-50. In terms of built, the 16-50 is so much better as the 17-50 does feel a little like the 18-250 ..

Of course, 16-50 is also weather proof, and that makes quite a difference.

But I like the zoom ring better in the 17-50. I can't understand why the focus ring is so much bigger than the zoom ring in the 16-50 that makes it quite difficult to extend the lens. Maybe it's something else.
What about the image quality? Does Tamron 17-50 equal or exceed the image quality of 16-50?

I may not need the weather proof feature (thats what I think for now.....). The price difference between these two lenses are $200.

-MC
06-25-2008, 11:52 PM   #11
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See https://www.pentaxforums.com/forums/pentax-slr-lens-discussion/29218-tamron-1...throwdown.html
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