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05-02-2012, 12:09 PM   #1
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Tamron 17-50mm thoughts?

I have had the Tamron 17-50mm f/2.8 lens on my Canon 40D and thought that it wasn't really much less of a lens than the equivalent 17-55mm f/28 that costs 2-3x as much. My brother just got this lens for his 20D following my advice and love it....any other have experience with it?

05-02-2012, 12:13 PM   #2
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Check out this review for how it matches up with its Pentax and Sigma counterparts:
DA* 16-50mm vs. Sigma and Tamron 17-50mm F2.8 Comparison - Introduction - PentaxForums.com

It's great overall!

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05-02-2012, 12:36 PM   #3
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Wow...great read. Ive always been biased to Tamron as opposed to Sigma in terms of third party glass. Just experience....I guess.
05-02-2012, 04:22 PM   #4
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Great lens and a favorite among a lot of pentaxians here on the forums. I shoot with its bigger brother, the 28~75, essentially the same lens just different focal and I really like it. The only issue with Tamron is their pentax line of lenses just falls short in features, also falling way short in terms of overall IQ compared to the newer Sigma lenses. Not sure what has been going on with the Pentax line from Tamron but Sigma is leaving them in the dust at the moment.

05-02-2012, 05:39 PM   #5
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I have never heard a bad thing about the lens except some Tamron QC and don't undertstand its less than expected numbers on the in-depth review here. I had one a few days ago for about 3 hours. mine was a refurb and was defective, its halfway through the exchange process. It had a sketchy connection with my camera and the auto focus was to far off to even correct with the K20's focus adjust but when used manually it was sharp as nails and i can't wait to get the replacement.

Last edited by no694terry; 05-03-2012 at 05:08 AM.
05-02-2012, 07:37 PM   #6
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QuoteOriginally posted by joe.penn Quote
The only issue with Tamron is their pentax line of lenses just falls short in features.

Depends on the features.

The K-mount Tamron 17-50/2.8 (A16P), without image stabilization,
seems to have better IQ than the newer version with image stabilization.
05-02-2012, 08:04 PM   #7
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QuoteOriginally posted by lytrytyr Quote
The K-mount Tamron 17-50/2.8 (A16P), without image stabilization,
seems to have better IQ than the newer version with image stabilization.
+1. I have seen samples to prove that issue too.

I'll never purchase a lens with IS, thank you very much - I don't need another failure source.
05-02-2012, 08:28 PM   #8
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QuoteOriginally posted by lytrytyr Quote
Depends on the features.
- Screw Drive (as opposed to silent and fast internal motor drives; HSM specifically)
- Less than favorable coatings (pf pretty bad on high contrast situations across the entire line)
- No quick shift focusing mechanism
- No way to disconnect screw drive AF system without disengaging from body (in return breaks trap focusing/CIF feature(s))
- No weather sealing

Yep, depends on features...

05-02-2012, 10:03 PM   #9
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QuoteOriginally posted by joe.penn Quote
- Screw Drive (as opposed to silent and fast internal motor drives; HSM specifically)
HSM? That's Sigma not Tamron. I don't think Tamron has developed an equivalent yet, so Pentax versions are not at a disadvantage compared to other mount versions.
05-03-2012, 06:16 AM   #10
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QuoteOriginally posted by Laurentiu Cristofor Quote
HSM? That's Sigma not Tamron.
Um, hmmmm, oh
05-08-2012, 07:58 AM   #11
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I am curious how the new 24-70mm f/2.8 VC will perform, though I think its only available for Nikon, Canon and Sony at this point....
05-08-2012, 09:36 AM   #12
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QuoteOriginally posted by Jemlnlx Quote
any other have experience with it?
My 'go to' lens for situations where 'I don't know what's going on and can't pick a prime' ... Always delivers.

Sharp, flexable and sexy... She's a keeper...
05-08-2012, 10:27 AM   #13
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That makes me feel better because I have one on the way!
05-08-2012, 10:40 AM   #14
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Build quality isn't great.. I had a zoom failure, back-focus at wide angle, warped rubber, loose filter ring on the 2 copies that I owned. I used to really like Tamron for the bang for buck, but the cheap plastic feel and build quality issues led me to stay away from Tamron stuff for good.

All these problems got fixed under warranty, but I had to keep sending the lens away to Tamron time and time again by insured mail or driving to quite a far-out location (while in Singapore)
05-08-2012, 09:04 PM   #15
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I've had one for about three or four years now and I'm pretty happy with it. It's basically my go-to all purpose lens. Good range of useful focal lengths, constant fast aperture, sharp and decent rendering. The colors and the bokeh aren't as good as my primes but it is a whole heck of a lot more convenient than swapping out three different lenses on the go. Build quality is pretty good for me, better than the 18-55 it replaced although not as good as the older A lenses I own.
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