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12-26-2007, 02:51 AM   #1
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Tamron SP AF 28-75mm f/2.8 XR Di Macro

So, what can you say about this lens?

12-26-2007, 03:12 AM   #2
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Superb lens. It has the most "Pentax like" IQ of any 3rd party lens I've tried.
Very good color, and contrast. Good bokeh for a zoom. Sharp wide open, and a razor stopped down. Build is very good.

Be aware that some people have gotten copies that have BF/FF issues. I have not heard of anyone recently with those problems, so it might have been an early production run. Mine (bought last March) is fine.
12-26-2007, 07:13 AM   #3
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roscot basically said all the important stuff. I do like mine!!!
12-26-2007, 10:14 PM   #4
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Do a search for it; it's mentioned/recommended often. You'll be astounded by the ratio of good to bad said about this lens (i.e. very few speaking negative) It was about my 4th choice if not 5th or more when I bought my camera (instead of the kit lens) ... I'm so lucky eveything else was out of stock and it ended up becoming my 1st lens purchased! Loads of pix taken with it in my gallery on Fotki.
My 1st few shots while learning how to use the camera: Testing - Pentax K10D - Tamron SP AF28-75mm F2.8 album | m8o |
The next weekend: Father's Day 2007 album | m8o |

12-27-2007, 02:23 AM   #5
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Yes, i`d read lot about f/b focus problem on the net.

But it very sad taht there isn1t Tamron 17-50 for K bajonet...
12-27-2007, 05:29 AM   #6
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Just another thumbs up for the Tamron! It's my main go-to lens, great "people" range. If I need something wider, I use my Sigma 10-20mm (although I'm finding I'm really starting to enjoy 20mm, anyone have a DA21mm they want to give me? ), longer I use my DA* 50-135mm, but for "in the middle", the Tamron gets the job! 100% crops coming out of this lens are amazing in their details, bokeh is really good, and autofocus is really quick (short focus throw). It's also fairly lightweight for what it is.
12-27-2007, 06:08 AM   #7
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After having a quick look around ... it's a decent value for money lens by the looks of things as well.

I am starting to like some of the gear from Tamron ... I already have the 90mm macro lens and love it.

LBA + no money = painful
12-27-2007, 07:27 AM   #8
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I have the Tamron 28-75 and I must say I am very impressed with the lens for what I use it for, mostly outdoor automotive photography. It can be a little soft at 2.8, but only relative to itself at smaller apertures. I definitely reccomend this one!

12-27-2007, 07:55 AM   #9
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I bought this lens early December. I haven't taken it off the camera yet (and don't plan to for a while). I've used it for a trade show and a bunch of family shots. It's awesome. Mine is sharp from 2.8 up.
12-27-2007, 08:57 AM   #10
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Tamron 28-75 2.8

Superb lens and great price performer. It is the lens most often found on my camera. Others have cataloged its virtues. Dave
12-27-2007, 09:42 AM   #11
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I just got one for christmas and seems real nice, I don't usually go real wide anyway and like a constant f2.8. Heres a test at 75mm wide open only default sharpening in capture one.
12-27-2007, 10:49 AM   #12
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This is at 2,8 - not bad. And how about a/focus in low light?
12-27-2007, 11:10 AM   #13
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Sharp, even at 2.8, falls off only slightly at the edges, very good edge to edge at 4.0 and above, excellent color rendition and contrast throughout the full zoom range.

Cons, kinda big, some zoom creep, I personally am not a big fan of it's bokeh. The Tammy 90 macro has most excellent bokeh, but not the 28-75. But bokeh is a very personal thing you might love it, I know some do. A bit pricey.

All in all, one of the few zooms I own that I can unreservedly recommend.

One sample: K10D f5.0 at 1/50 and 33mm

NaCl(very versitile lens)H2O
12-27-2007, 12:17 PM   #14
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Anyone switch to this from the Sigma 17-70? Wondering how much I'd miss the 17-27 range and how the color/sharpness compare...
12-28-2007, 07:00 AM   #15
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I just got this lens after reading many great reviews about it.

my choices were sigma 24-06, sigma 24-70 and this one tamron28-80.

basic criteria for me was a fast lens to go with my sigma 70-200 f2.8

My first thought was to go with the sigma 24-70 because it would really only leave a gap of 20-24mm between my 10-20 and the new lens, but there have been some reviews about the 24-70 being a little soft at 70mm. the 24-60 left a gap at both ends, had gennerally worse reviews than the 24-70 sigma, but was smaller and lighter. Many, including myself looked at this as a way to share filters, as the 24-60 has a 77mm filter (same as 10-20mm and 70-200f2.8 lenses/

Although the tamron leaves a bigger gap at the low end, I have 2 ways to fill it, my 24mm f2.5 tamron adaptall (mf but fast) or my pentax 18-35 zoom that came with the *istD. This is a personal choice I had that may or may not exist for others

the pentax zoom gives a little overlap, and uses the same filters as the new tamron zoom 67mm. As a result my polarizer, and 2 different graduated ND filters have now got an expanded use.

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