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06-12-2007, 09:08 AM   #1
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28-80 Range

I'm looking into a zoom lens in the 28-80 range (actual, no crop conversion please) like the Sigma 28-70 DG, 24-70 DG, and the Tamron 28-75 XR Di LD. I've been reading online reviews, but they are usually for Canon/Nikon mounts. I'd like to hear opinions from some Pentax people on lenses in this range.

This will be used for animal portraits, so I don't need below 28mm, and I don't need higher than the 80-135mm range. I've been using primes, but I think I'm losing shots without the zoom (since dogs are harder to control than people). I picked the three lenses above because they are easily available online.

Thanks,
-dak

06-12-2007, 09:39 AM   #2
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I have the Tamron and can speak to that one at least. I have been very happy with it so far. I purchased it based on recommendations from others here. I can find no flaws. I have used this lens in some very low light situations where no flash is allowed and have been very happy with the results. I am not a big macro guy (yet) but the few I have taken have come out well. It has a well built look and feel. I am satisfied with the AF speed, but in low light and or difficult subjects it does hunt sometimes. I think for the price and quality of the images , it is an outstanding lens. My best portraits have come from this lens.

The only complaint I have is I wanted to use this as my walk around lens, however I do find I like to go a little wider than 28mm.
06-12-2007, 09:46 AM   #3
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Hey dak,
I don't know about the others, but I have a smc pentax F 28-80mm f3.5=4.5 I like alot. Thereis a non smc version too. I paid $50 or $60 us for mine.
06-12-2007, 10:17 AM   #4
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There's also the Pentax FA* 28-70mm- a great performer, but it's very hard to find! Check out the Lens Review Database for more info on it and a complete list of lenses in the 28-80 category!


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06-12-2007, 11:05 AM   #5
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I have the Tamron. It has become my standard walk around lens, replacing the FA 28-105 f3.2-4.5.

The Tamron is very sharp, even at F2.8, good color and contrast. It is internal focus, so the front element does not rotate. It has really smooth bokeh in most cases, although it can look a bit rough with busy OOF backgrounds.

Overall a very good lens, especially for the money. FA 28-105 f3.2-4.5 I mentioned above is another really nice option. Not as well built as the Tamron, but surprisingly good IQ.

Since you mention you do animal portraits
Here is one done with the Tamron 28-75:


And one done with the Pentax 28-105 f3.2-4.5

Last edited by roscot; 06-12-2007 at 11:45 AM.
06-12-2007, 11:39 AM   #6
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I have the Sigma 28-70 EX-DG it is f2.8 across and is a nice sharp fast lens.I like the color it produces and it focuses very well compaired to some other Sigmas on the market. I think you would find it to be a great little lens for portraits of critters and folks.I think this size zoom is very competitive from what I have read and heard. Best of luck.
Kenn
06-12-2007, 12:57 PM   #7
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Thanks for all of the responses.

Tom/Mo- My first instinct was to look for a used 'film-generation' lens, so thanks for the input. The 3.5-4.5 variable aperture is something I wanted to avoid. If I decide to hold off a while on the purchase, I'll be scanning the used ads regularly.

I'm shooting mostly with the 50/1.4, and DA50-200 right now.
06-12-2007, 01:02 PM   #8
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Alan,

I hope you don't have as many dog photos on your hard drive as I do. I need to find new subject matter (and a larger hard drive)

-dak

06-12-2007, 04:56 PM   #9
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Sigma 28-70 2.8

I have the 28-70 2.8 EX DG lens and I love it. For the price I do not know how you can go wrong.

Last edited by Eastern Shore Charlie; 08-03-2007 at 02:32 PM.
06-13-2007, 05:19 AM   #10
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While we're posting doggies with the Tamron, here's my little fur beast Chase -
(Also used the Sigma EF-500 DG Super with Joe Demb's Flip-it)
06-13-2007, 05:23 AM   #11
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I have two copies of the SMC F 28-80 3.5 Macro. It's a good performer for around $60US. SplosDB rates it **, which is a solid performer. I use it with my extension tubes and I get great results. As a walk-around lens, it's pretty good but heavier than the kit lens, so I don't carry it so much. I'm away from home or I would post some pictures of my dog, too.

KEH gets them occasionally. I bought my second copy there a few weeks ago. The first one started acting wonky in AF mode and I like it well enough to get a backup.
06-13-2007, 09:43 AM   #12
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QuoteOriginally posted by wildboar Quote
Alan,

I hope you don't have as many dog photos on your hard drive as I do. I need to find new subject matter (and a larger hard drive)

-dak
I shoot a lot of dog shows, so yeah, I've got quite a few.
Please look here if you are interested.
Dog Portraits Photo Gallery by Alan H. Glassman at pbase.com
2007 Blue Grey Cluster Dog Shows - Harrisburg PA Photo Gallery by Alan H. Glassman at pbase.com
Glouceter (VA) KC Dog Show Photo Gallery by Alan H. Glassman at pbase.com
Asst Dog Show Pictures Photo Gallery by Alan H. Glassman at pbase.com

Good luck with your lens search.
06-13-2007, 10:20 AM   #13
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I have the FA 28-70 f/4 AL. It's a great walk around lens because it's so light and compact. The constant aperture is nice when you need it, but it's pretty soft at f/4. From f/6.7 and up, it gets pretty sharp though.
06-13-2007, 12:31 PM   #14
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As MO said the FA 28-70 is very worth checking out. There's an FA 28-70 f4 on Ebay today. No I'm not the seller. It ends in a couple of hours and is at $65.00. I have one of these lenses and love the results. Not the fastest lens but a great performer at all focal lengths. A little soft at f4 but still well worth consideration. It seems to go highly unnoticed by many. I have that lens on the camera at all times and it gets the heaviest use of my entire LBA addiction.
06-13-2007, 12:42 PM   #15
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You can't go wrong with the Tamron 28-75mm. This lens has gotten rave reviews in almost every single forum.
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