Forgot Password
Pentax Camera Forums Home
 

Third-Party Pentax Lenses - Reviews and Database » Tamron Lenses » Current Zoom Lenses
Tamron 17-50mm F2.8 SP AF XR LD Aspherical IF Di II Review RSS Feed

Tamron 17-50mm F2.8 SP AF XR LD Aspherical IF Di II

Sharpness 
 9.1
Aberrations 
 8.4
Bokeh 
 8.1
Autofocus 
 7.7
Handling 
 8.4
Value 
 9.2
Reviews Views Date of last review
83 251,786 Thu December 20, 2018
spacer
Recommended By Average Price Average User Rating
95% of reviewers $352.23 8.67
Tamron 17-50mm F2.8 SP AF XR LD Aspherical IF Di II

Tamron 17-50mm F2.8 SP AF XR LD Aspherical IF Di II
supersize
Tamron 17-50mm F2.8 SP AF XR LD Aspherical IF Di II
supersize
Tamron 17-50mm F2.8 SP AF XR LD Aspherical IF Di II
supersize
Tamron 17-50mm F2.8 SP AF XR LD Aspherical IF Di II
supersize

Description:

The Tamron SP AF 17-50mm f/2.8 XR Di-II LD Aspherical [IF] is a lightweight, compact, and fast standard zoom lens designed exclusively for APS-C digital SLR cameras.


Tamron SP AF 17-50mm F2.8 XR Di II LD Aspherical [IF]
© www.pentaxforums.com, sharable with attribution
Image Format
APS-C
Lens Mount
Pentax K
Aperture Ring
No
Diaphragm
Automatic, 7 blades
Optics
16 elements, 13 groups
Mount Variant
KAF
Check camera compatibility
Max. Aperture
F2.8
Min. Aperture
F32
Focusing
AF (screwdrive)
Quick-shift
No
Min. Focus
27 cm
Max. Magnification
0.22x
Filter Size
67 mm
Internal Focus
Yes
Field of View (Diag. / Horiz.)

APS-C: 78-31 ° / 67-27 °
Hood
Included
Case
Lens Cap
Included
Coating
Multi-coated
Weather Sealing
No
Other Features
Zoom Lock
Diam x Length
7.4x8.1 mm (2.9x3.2 in.)
Weight
430 g (15.2 oz.)
Production Years
(in production)
Pricing
$299 USD current price
$434 USD at launch
Engraved Name
Tamron SP AF 17-50mm F2.8 XR Di II LD Aspherical [IF]
Product Code
A16
Reviews
User reviews

Buy Lens: Buy the Tamron 17-50mm F2.8 SP AF XR LD Aspherical IF Di II
In-Depth Review: Read our Tamron 17-50mm F2.8 SP AF XR LD Aspherical IF Di II in-depth review!
Price: US $299
Mount Type: Pentax KAF2/KAF (screwdrive AF)
Price History:



Add Review of Tamron 17-50mm F2.8 SP AF XR LD Aspherical IF Di II Buy the Tamron 17-50mm F2.8 SP AF XR LD Aspherical IF Di II
Author:
Sort Reviews by: Date | Author | Rating | Recommendation | Likes (Descending) Showing Reviews 1-15 of 83
Forum Member

Registered: April, 2018
Location: Tartu
Posts: 58
Lens Review Date: December 20, 2018 I can recommend this lens: Yes | Price: $150.00 | Rating: 8 

 
Pros: Sharpness - Close focus
Cons: autofocus issues
Sharpness: 9    Aberrations: 7    Bokeh: 6    Autofocus: 3    Handling: 7    Value: 8    New or Used: Used    Camera Used: K50 and K3   

Tamron 17-50mm F2.8 SP AF XR LD Aspherical IF Di II

My thoughts after 7 months.

Ergonomics and design
  • The zoom ring is sometimes a little stiff. (it doesn't really affect my photography, but it feels a bit odd.)
  • The focus ring moves almost too easily and has a throw of ONLY 60 degrees!!! Be extremely careful when using manual focus.
  • It is quite a bit bigger and heavier than the kit lens and extends a lot @50mm.
  • Rubber grips seem quite good. They don't slide and aren't loose.
  • The hood is small, but then again you couldn't use a bigger one with 17mm. It's def. a plus and you can mount it backwards on the lens.
  • There's also a small zoom ring lock which only works @17mm. It's not useful, because the zoom ring is sticky enough. I've never had the need to use the lock.
  • No seals anywhere. Dust gets in. Wouldn't take it out in rain.

Optics
  • The sharpness of this lens is exceptional. It's not quite DA*50-135 or prime level, but almost. Even the corners are good.
  • At f2,8 it's a bit hazy, but from f4 it's very sharp.
  • The bokeh is lackluster for my taste. It does show some onionrings and the background never gets buttery smooth. It always has a hectic feel to it.
  • I feel as if the front element is a bit soft - it can get more easily scratched than other lenses.
  • When it flares, it flares hard and ugly.
  • Ch. aberrations are noticeable at times.

Autofocus
  • No in-body motor. It uses a noisy screwdrive mechanism.
  • The AF is quick and snappy. Better on the K3 than the K50.
  • Sometimes it has a hard time acquiring focus and starts hunting.
  • The mayor problem: lack of quality control?
    I've read the reviews on the internet and many copies of these lenses across all mounts show one common problem: this lens misfocuses differently on different focal lengths. This means you can only calibrate this lens to have accurate focus on one focal length. On my copy the difference between 17 and 50 is an microadjustment span of over 120qm. This is insane. Out of paranoia, I even checked the internals of this lens. Everything seemed fine, no loose flex cables.
    Please consider this when buying!!!!! Definitely test it out before buying.


It's a great value lens that beats the much more expensive DA*16-50 F2.8 in sharpness.
Just know that it might not provide as good of a look and lacks all the premium features of the DA* lens.
If you can find it used for under 150$ it's a steal. Definitely recommended at that price. And whenever possible: test it out for AF issues before buying.
   
Site Supporter

Registered: November, 2014
Posts: 93
Lens Review Date: December 14, 2018 I can recommend this lens: Yes | Price: $85.00 | Rating: 9 

 
Pros: Very sharp, excellent IQ
Cons: Build quality (loose screws)
Sharpness: 10    Aberrations: 9    Bokeh: 9    Autofocus: 8    Handling: 8    Value: 10    New or Used: Used    Camera Used: K3 & K-S2   

I love this lens and can't believe I got it on Craigslist for only $70 last year and only needed to add a lens hood for $15 more.

The image quality is top-notch but the build quality is shaky. The zoom mechanism was a little loose and would not register an accurate focal length on the camera when I first got it (but the images looked amazing). I dared to take it apart and found the loose screws and put it back together with a prayer that it would still work and I was not disappointed. Some other screws on the filter ring got loose that I had to tighten up as well.

Even so it is certainly worth the money.

I took this single frame 150 second Astro-trace photo of the Milky Way in July at Cherry Springs State Park in Pennsylvania.
   
New Member

Registered: November, 2016
Location: Alpes du Nord - FRANCE
Posts: 1
Lens Review Date: December 2, 2018 I can recommend this lens: Yes | Price: $150.00 | Rating: 9 

 
Pros: Sharp, Constant F
Cons:
Sharpness: 9    Aberrations: 8    Bokeh: 8    Autofocus: 8    Handling: 9    Value: 9    New or Used: Used    Camera Used: K5 and K3   

Hi,

This is a really good and cheap lens.

This is my first review, for me picture can explain why i considering this lens.

K3 + 17-50 @F4 ISO100
K5 + 17-50 @5.6 ISO400
   
Junior Member

Registered: January, 2017
Location: Sofia
Posts: 40
Lens Review Date: August 27, 2018 I can recommend this lens: Yes | Price: $250.00 | Rating: 10 

 
Pros: Very sharp, light weight, fast focus
Cons: none for me
Sharpness: 9    Aberrations: 9    Bokeh: 8    Autofocus: 9    Handling: 9    Value: 10    New or Used: Used    Camera Used: K500   

Compared wit my kit lense DAL 18-55, this one is a level hiher. It is as sharp as the kit on 2.8 and much faster ofcours. From 4.0 it is extreamly sharp and dhe 27 sm. focusing distanse makes it almost macro lense. I didn't believed it untill I tried it. My pease is very stabel with no comlains on handling. It is the closest to the universal lens I can imagine and is perfect walkarownd lense for me. I'm very happy to have it. hihly recomand it.
   
Pentaxian

Registered: December, 2013
Posts: 483
Lens Review Date: July 7, 2018 I can recommend this lens: Yes | Price: $400.00 | Rating: 8 

 
Pros: Sharp, flare resistant
Cons: Focus accuracy, cheap build, bad quality control
Sharpness: 10    Aberrations: 9    Bokeh: 7    Autofocus: 5    Handling: 7    Value: 9    New or Used: New    Camera Used: K-30   

This lens is sharp. My copy was extremly sharp from F3.2 for a zoom. Altough the official pentax and tamron service couldn't set the focus calibration correctly for my lens. (I sent back the first copy with the same fault.) This lens feeles cheap even after handling a DAL kit lens. The hood is soft and the touch of the focus ring is bad. However the lens optically is very good. When I changed to a DA*16-50, I missed the sharpness and flare resistance of the tamron. Altough the DA* has some magic and a more plesent creamy bokeh.

Here are some images:
IMG150906_0019 by Benjámin Czétényi, on Flickr

IMG150813_0028 by Benjámin Czétényi, on Flickr

IMG150511_0015 by Benjámin Czétényi, on Flickr

IMG150529_0012 by Benjámin Czétényi, on Flickr

IMG0141_150405 by Benjámin Czétényi, on Flickr

IMG0003_150314 by Benjámin Czétényi, on Flickr

IMG0188_150404 by Benjámin Czétényi, on Flickr

IMG0033_150405 by Benjámin Czétényi, on Flickr
   
Junior Member

Registered: January, 2013
Location: Texas
Posts: 32
Lens Review Date: November 28, 2017 I can recommend this lens: Yes | Price: None indicated | Rating: 9 

 
Pros: Light weight, Price, Sharpness
Cons: Manual focusing, no aperture ring
Sharpness: 9    Aberrations: 9    Bokeh: 9    Autofocus: 10    Handling: 8    Value: 10    New or Used: New    Camera Used: Pentax K30, K70, KP   

Good built quality for the price. At 17mm, very sharp, but a little bit too much distortion and vignetting. At 50mm, less sharp.
Very light lens for a 17-50/2.8.
Excellent value. In terms of image quality, very close to Pentax DA Limited 20-40/2.8-4.0, and slightly better than Sigma 17-70/2.8-4.0 C,
The focusing ring is not very good (too light, short course), as most autofocus lenses.
   
Forum Member

Registered: November, 2013
Location: Queensland, Australia
Posts: 73
Lens Review Date: June 19, 2017 I can recommend this lens: Yes | Price: $200.00 | Rating: 9 

 
Pros: Image quality, Contrast,
Cons: Low light AF,
Sharpness: 9    Aberrations: 8    Bokeh: 7    Autofocus: 7    Handling: 8    Value: 9    New or Used: New    Camera Used: KS1 K200D   

I've had this lens for about three years now, and was my first upgrade from the kit lens. Comments have been made regarding the build quality but I've felt it has been robust enough for my needs over those years.
The image quality, contrast and AF are fantastic in good light. Thankfully in Australia we have that in plentiful supply.

Low light will let you down at times, and the overall results can be a bit patchy. When it's good it's good... etc. I've just purchased the DA 15mm HD limited, so it will be interesting to see if the results from that lens exceed the Tamron.

It is fantastic value for money, especially when compared to the Pentax/Sigma comparable zoom lenses.





   
Veteran Member

Registered: February, 2010
Location: California
Posts: 1,602
Lens Review Date: March 20, 2017 I can recommend this lens: Yes | Price: $299.00 | Rating: 7 

 
Pros: Cost/value, color rendition, low aberrations
Cons: AF which I thought was very poor
Sharpness: 8    Aberrations: 9    Bokeh: 8    Autofocus: 3    Handling: 8    Value: 8    New or Used: New    Camera Used: K5ii   

I may have received an abnormal copy but the AF was very poor. I initially thought it was front focusing so I did a FF test and the results were all over the place. I did the battery test and used a tripod and could not get consistent results even in a very well lit situation. Using the lens in real world situations also produced inconsistent photos. When the focus did lock in and was not front focusing the photos were very nice and sharp. The color was always very good and the aberrations were very low even when shooting against a clouded sky. I noticed the AF issues would occur mostly in low-light situations and would occur much less in well lit environments. I know many other owners have had a better experience with the lens and I consider my copy an abnormality so I still recommend this lens to others who want an upgrade from their kit lens, especially at the price point. I am however, exchanging the lens for the Sigma 17-50.
   
New Member

Registered: March, 2014
Posts: 6

2 users found this helpful
Lens Review Date: November 8, 2016 I can recommend this lens: Yes | Price: $300.00 | Rating: 9 

 
Pros: Very Sharp at all Focal Lengths, Best IQ for Standard Zoom Lens
Cons: Dust Magnet, Build Quality could be much better
Sharpness: 9    Aberrations: 8    Bokeh: 8    Autofocus: 8    Handling: 7    Value: 10    New or Used: New    Camera Used: Pentax K-5   

It's about time to do a review about this lens. It was the first lens I owned after the kit lens and it has been my all around lens since 2012.

Sharpness

Let's begin with the best part, Sharpness. This lens is a absolute beast at sharpness when mounted on my K-5. Very consistent across all the frame and all the focal lengths with a bit loss in 50mm. Even wide open (F/2.8) it produces very crisp looking photos becoming better and better from F/4 to F/8.

Versatility
As I said, this is been my all around lens from 2012. Most of my shooting consist in family/friends portraits and lots of landscape and nature photography. I found my self using it all the time because of it's useful focal length and fast aperture.

Auto-focus
The auto-focus is great in good light, very fast and reliable. Just don't depend on it to focus in low light or Sports, I've tried to photograph Handebol Indoors and it struggles to nail focus even with slow movement. It will do the job in birthday parties or holiday celebrations indoors but be aware of its slower AF speed in this conditions. It will nail focus but with hunting.

Chromatic Aberrations
Well when I begin shooting with this lens I tend to use it wide open all the time even in bright sunlight doing street photography. You can see some CA at F/2.8 especially at 17mm but nothing compared with the Pentax DA* 16-50. Very easily corrected in LR with default correcting settings. Mostly purple and green in very contrasty areas.

Build quality and handling
Well this is the worst part, without being bad it's not great either. The focus ring have this strange feeling when we manual focus and the zoom ring is stiff especially when we point to upper subjects. The body is build mainly from plastic with the exception of the metal body mount ring.
The absolute worst part it's is the protection against dust. I'm a very zealous person and I clean my lens after every photo-shoot with the air blower or a piece of cloth. I find my self with lots and lots of dust inside my lens even cleaning it frequently. This happens more when I use the zoom ring too much outside. I also use a UV filter with this lens all the time.
My brother also has a Tamron 17-50 and I feel noticeable diferences in terms of sharpness (relatively better) and less zoom ring stiffness. Maybe I got a inferior copy.

Compared with similar lens
I've owned the Pentax 18-55 D AL WR, Sigma 17-70 Contemporary and currently own a Pentax DA* 16-50.
Compared to this lenses I always turn to the Tamron when I going to a photograph landscapes. The overall performance of this lens is the better of the four and it beats every one of them in terms of sharpness. The only thing that keeps me from selling the DA* 16-50 it's the useful WR.


Conclusions

This lens is just the best IQ standard zoom lens that Pentaxians can buy with their money.
Consistent image quality in all focal lengths, Sharp as knife, very good contrast and color reproduction and with Fast aperture F/2.8 this lens is a gem.
I recommend this lens over any other in his class (with the exception of Sigma's 17-50 F/2.8 I haven't test one yet).
If you are looking to upgrade your Pentax 18-55 WR from Kit lens don't think twice you will definitely not going to regret the upgrade!

And don't forget to register your lens with Tamron to obtain your 5 year warranty!

Sample photos:
https://flic.kr/p/NYtiyL
https://flic.kr/p/N4Pw3j
https://flic.kr/p/Nz4F7A
https://flic.kr/p/P2G6vn
   
Pentaxian

Registered: April, 2009
Location: Madrid, Spain
Posts: 5,434

1 user found this helpful
Lens Review Date: May 18, 2016 I can recommend this lens: Yes | Price: $300.00 | Rating: 9 

 
Pros: Small, light, sharp with great contrast even wide open
Cons: Not the best build quality
Sharpness: 9    Aberrations: 9    Bokeh: 9    Autofocus: 8    Handling: 8    Value: 9    New or Used: New    Camera Used: K200D, K3   

This was the first good autofocus lens I bought for my DSLR and it has impressed me since the first day. Even now, owning all the DA limited lenses, this one gets plenty of use and is especially useful on holidays or at events when I need to travel light and don't want to swap lenses all the time or use just one prime.

The lens is fairly well built but does have a bit of a plasticky feel. After around three years of use the rubber on the zoom ring seems to have expanded slightly and is now a bit slack, but still firmly stuck to the barrel and working perfectly. Manual focus, although I don't use that much, feels a little gritty but is useable.

Update 02/02/2018 - After owning this lens for over five years, the front end (where the hood attaches) has partially broken and had to be super-glued back on. It's not a major problem and given how much I've used it, it's hardly surprising that it starts to show it's mileage. Still, the break show that the quality of the plastic used in it's construction is not the highest.

The image quality from this lens is incredible, especially given the price when compared to other similar models from other manufacturers. Wide open it's very sharp and only gets better stopping down. The colours and contrast are great and there's very little flare.

The only qualm I have about the IQ is at 17mm the extreme edges of the frame are distorted. This won't be noticeable for a landscape shot or if the edges are out of focus, but for wide group shots of people it's advisable to avoid having anyone at the very edge because faces can become distorted.

Overall this lens has fantastic image quality, a decent zoom range and all at a very good price. It's the lens I recommend to people who are getting into DSLRs and I always tell them to spend less on the camera and buy this lens as it'll make a world of difference to their images.

Update 08/07/2018: After many years of use, I've now sold the Tamron as I picked up Sigma 17-50mm f/2.8 and found I preferred it (you can find my review of that lens in the Sigma zooms section). There's very little difference in the optics and results of the two lenses but the Sigma has an in-lens AF motor and is much better built, though also bigger and heavier. Go for the Tamron if your budget is limited, you don't care about quiet AF or small size and low weight are important to you. Go for the Sigma if you're willing to spend a little more, appreciate quiet AF or like your lenses to be solidly built. I still wouldn't hesitate to recommend the Tamron, especially to a beginner who wants good results from their new DSLR without breaking the bank.

Sample shots below.

Stopped down for landscapes:


IMGP4682
by Jonathan MacDonald, on Flickr


Sunset on the beach, Washington state
by Jonathan MacDonald, on Flickr


IMGP5265
by Jonathan MacDonald, on Flickr

Wide open for shallow depth of field or low-light use:


Córdoba fountains
by Jonathan MacDonald, on Flickr


1189 Vietnam - Hue - Restaurante Ancient Hue (IMGP0868a)
by Jonathan MacDonald, on Flickr


IMGP6833
by Jonathan MacDonald, on Flickr


Off the grid in black and white
by Jonathan MacDonald, on Flickr

Some newer images:


Oslo
by Jonathan MacDonald, on Flickr


Gamla Stan, Stockholm
by Jonathan MacDonald, on Flickr


IMGP7732a
by Jonathan MacDonald, on Flickr
   
New Member

Registered: October, 2011
Posts: 6

1 user found this helpful
Lens Review Date: May 17, 2016 I can recommend this lens: Yes | Price: $175.00 | Rating: 9 

 
Pros: Centre sharpness
Cons: Edge sharpness
Sharpness: 9    Aberrations: 8    Bokeh: 8    Autofocus: 9    Handling: 9    Value: 9    New or Used: Used    Camera Used: K-3   

I have had this lens for about a year and have read lots of stuff online since about the various samples you can get of this lens, I thought for a long time that I owned a bad copy (sample). The first time I used it was for a wide group shot of about 35 people indoors using flash and an aperture of approx. f6.3. When I uploaded the images later I saw that the people standing on the edges of the group were very soft and distorted indeed. Not impressive really. So it then became my product photography lens, normally used at f5.6-6.3, and it did very well with that work despite the necessity for me to dial in a fairly substantial focusing adjustment for it in my K-3 due to back focusing issues (but that is not really a problem as it was easy to fix). Just recently though I used it instead of my fast 50mm or 77mm to take website portraits for a marketing company. This is where it started to shine for me. At wide apertures of f2.8-f4 it produced beautiful results where it didn't matter about the edges. The OOF areas were lovely and soft and the sharpness where I needed it in the centre was perfect. It will now be used for portraits from here on in, indoors and outdoors, wide open or close to it (until I upgrade to the K-1). So if you are thinking about buying this lens go ahead but 1) test the focusing and correct it in camera if required and 2) shoot subjects where the centre needs to be sharp but the edges are not important. It is a great value lens!
   
New Member

Registered: September, 2013
Location: Como
Posts: 13
Lens Review Date: October 23, 2015 I can recommend this lens: Yes | Price: $320.00 | Rating: 9 

 
Pros: Handling,fast, sharp
Cons: no WR
Sharpness: 8    Aberrations: 9    Bokeh: 8    Autofocus: 8    Handling: 10    Value: 9    New or Used: New    Camera Used: K3 and Kx   

I bought this lens in June 2014 replacing a Sigma 17-70. Comparing the two it's a complete different world. Fix F makes a big difference.
It is my most used zoom lens use ing it for portraits and studio, but also outside . Very good on aberration and also like colors . I definetly reccomend this lens.

   
New Member

Registered: August, 2015
Posts: 13

1 user found this helpful
Lens Review Date: September 13, 2015 I can recommend this lens: Yes | Price: $400.00 | Rating: 10 

 
Pros: Shar, constant aperture f/2.8, AF, ZOOM, low aberrations, price!
Cons: None
Sharpness: 10    Aberrations: 10    Bokeh: 10    Autofocus: 9    Handling: 9    Value: 10    New or Used: New    Camera Used: K-5, K-3   

I use this lens for a period of 4 to 5 years. During this time I used it more than any of my other lenses. This lens has the convenient zoom range, and it is also fast enough almost always. For this reason, the hand itself is attracted to him. Another reason for the frequent use of this lens is the high image quality that is most fully revealed, when combined with the camera K-3. The reason - the absence of anti-aliasing filter in the camera. Even wide open, he gives you razor sharp images! Per-pixel sharpness wide open! Bokeh good enough wide open. And all this is given for a very reasonable cost for the lens of this level! For that amount of money you can buy just the entry-level AF Pentax lens or may be old prime. I could only wish for improvement of USM and full metal body. It's really all that can be added.


   
Site Supporter

Registered: February, 2015
Posts: 5,501

2 users found this helpful
Lens Review Date: April 6, 2015 I can recommend this lens: Yes | Price: $280.00 | Rating: 9 

 
Pros: Premium image quality for cheap
Cons: Not Pentax, plastic build
Sharpness: 9    Aberrations: 9    Bokeh: 9    Autofocus: 9    Handling: 9    Value: 9    New or Used: New    Camera Used: K-3   

Best standard zoom, sharp contrasty, fast, reliable and cheap. In terms of use, this zoom compete with the DA limited primes , so that I now have less use of the primes. So, the glass is really good, it is now one of the best lens I use (sorry Pentax). However, the build quality is on the cheap side (but what can you expect at this $280 price?) and since it is not a Pentax lens, in-camera lens corrections are not available.

Pros:
- most used focal length (17mm better than 18mm...)
- Image quality, sharp at f4, tack sharp at f5.6 until f16
- fast f2.8
- cheap
- very reliable
- Tamron 5 years warranty

Cons:
- Not Pentax
- AF a bit noisy
   
Veteran Member

Registered: July, 2007
Location: North West UK
Posts: 380

1 user found this helpful
Lens Review Date: December 20, 2014 I can recommend this lens: Yes | Price: $300.00 | Rating: 9 

 
Pros: Sharp when it wants, Good build for a plastic lens, nice bokeh
Cons: Not sharp when it is not in the mood, occasional colour cast that is not like Pentax lenses, images can look flat
Sharpness: 9    Aberrations: 9    Bokeh: 8    Autofocus: 9    Handling: 10    Value: 9    New or Used: New    Camera Used: K-5 K-01 K20D K10D   

This for me is an odd lens. I bought it new back in 2012 at Focus, so a good price. It was in effect a replacement for my 16-45mm F4 which has been damaged. For half the price of the DA*16-50 it was a no brainer really, or so I thought.

Lets start with the positives.
In good natural light, this lens is excellent. Good detail - not in Limited leagues - but good nevertheless.
AF speed is good as well, faster than the SDM lenses, and on par with the fastest screw drive AF lenses that Pentax make.
The F2.8 makes it good for separating the subject from the background, with nice bokeh, but strangely it does not feel that the background is quite as separated as my FA50mm at F2.8 when the tamron is the same focal length.

Now the bad
It hates low light. You think it is in focus, but it is not, two or three attempts at the shot, or refocusing is needed.
Even then the shot is not as sharp as you would expect.
Colour rendition. I shoot raw most of the time, and even then it produces a colour cast that I personally am not keen on, even working on the image. Having said that, in good light it is producing images you would expect.
Distortion is okay but not outstanding, having said that, it is about the same as any other APS-C zoom out there.
Image - They can look flat, they just don't have that wow factor that a prime, or indeed the 16-45 had.
It works better on the K-01. This is odd, as you would expect the CDAF of the K-01 would be a worse combination, but actually in anything but good light, it is a better combination.

At the end of the day, it is difficult not to like this lens, for its speed and overall ability at a good price. The alternatives make it more so.
IF Sigma, for me, did not have a reliability issue overall with their lenses not talking to the body after a couple of years, or Pentax's own DA* had that still in the back of the mind SDM issue or too many general QC problem of earlier versions, then for the time being, this is the best of the three, albeit with issues of its own.

Until Sigma bring out the 17-50mm F2.8 ART lens and Pentax Bring out the HD-DA*16-50mm, this is my primary standard zoom lens.

To sum up, it is good, but it could be better. Hence a 7.

Edit (June 2015)
I thought I would never type this, but due to a recent burglary at home, this lens and my beloved K-5IIs went.
So here goes. Replacement 17-50 with the K-3:-

A big improvement. Colours are far better as is sharpness. AF speed with the K-3 is superior as well. IQ, I cannot fault it now. Maybe the original was not as good as this copy.

so now, I have amended the scoring and proud to say it is a 9.
Add Review of Tamron 17-50mm F2.8 SP AF XR LD Aspherical IF Di II Buy the Tamron 17-50mm F2.8 SP AF XR LD Aspherical IF Di II



All times are GMT -7. The time now is 09:52 AM. | See also: NikonForums.com, CanonForums.com part of our network of photo forums!
  • Red (Default)
  • Green
  • Gray
  • Dark
  • Dark Yellow
  • Dark Blue
  • Old Red
  • Old Green
  • Old Gray
  • Dial-Up Style
Hello! It's great to see you back on the forum! Have you considered joining the community?
register
Creating a FREE ACCOUNT takes under a minute, removes ads, and lets you post! [Dismiss]
Top