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11-15-2007, 12:25 PM   #1
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Please help choose between these 3 lenses...

1) Sigma 24-60 2.8
2) Sigma 24-70 2.8 Macro
3) Tamron 28-75 2.8

I need a faster zoom lens to replace my kit DA 18-55 (i'll probably trade this in along with my FA 50mm 1.4). I mostly shoot indoors with relatively low lighting. My budget is about $500-$600 (if you are thinking of suggesting something else). I have heard greating things about the Tamron 28-75 2.8; things like, it has great picture quality. I am quite picky when it comes to image sharpness.

Things i would like to know about these lenses:
1) I have read, supposedly a typical concern, about when buying third party lenses, because they reverse-engineer the lens, that when i upgrade my camera body, it might not opperate properly with the new body. Is this true?
2) I hear the Tamron lens (or all three) are quite old, do they now have a model that replaces them?
3) Anything else i sould be wary of, if i buy into these brands?

Thanks for the replies, you will be doing me a huge favour.

11-15-2007, 12:46 PM   #2
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I am looking for a fast mid range zoom also, to fit between my Sigma 10-20mm, and my Sigma APO 70-200 f/2.8 EX DG.

Either the 24-60 or 24-70 would do, as I am less concerned about a gap between say 60-70 then I am between 20 and 28.

The other possibility is one of the 16-50 or 18-50 f2.8 lenses.

So far the 24-60 gets my vote, only because I already have 4 other lenses with 77 mm filters. Something to think about.

This would replace my 18-35, 28-80 and 28-105 lenses as "the normal walk around" but with more speed.
11-15-2007, 12:49 PM   #3
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First of all, I don't have any of the lenses (so that pretty much DQ's me from this conversation). However, what about also considering the Sigma 17-70 f/2.8-4.5? I've read some good things about the lens and it would cover the entire focal length of the kit lens. Food for thought.
11-15-2007, 01:05 PM   #4
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QuoteOriginally posted by Bactman Quote
First of all, I don't have any of the lenses (so that pretty much DQ's me from this conversation). However, what about also considering the Sigma 17-70 f/2.8-4.5? I've read some good things about the lens and it would cover the entire focal length of the kit lens. Food for thought.
only negative is the variable apature. I am looking for fast over all the range,

11-15-2007, 01:32 PM   #5
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Of those three lenses, the Tamron is generally consider to be the top performer. The 24-60 would be second for optical performance.

As far as your 3 questions at the bottom:
1. The Tamron works the same as all F & FA Pentax lenses. It'll work on any future body the same as those lenses.
2. The "new" version of the Xr Di 28-75mm is the 17-50mm Tamron lens. Unfortunately its not available in K mount.
3. The rear lens caps from 3rd party providers are not as nice as the Pentax OEM ones. I generally order a seperate rear cap from Pentax for every lens I have.

I'm quite happy with my Tamron 28-75. Its probably the most versatile single lens I have.
11-15-2007, 02:03 PM   #6
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OK...

QuoteOriginally posted by Tingchaleun Quote
1) Sigma 24-60 2.8
2) Sigma 24-70 2.8 Macro
3) Tamron 28-75 2.8

I need a faster zoom lens to replace my kit DA 18-55 (i'll probably trade this in along with my FA 50mm 1.4). I mostly shoot indoors with relatively low lighting. My budget is about $500-$600 (if you are thinking of suggesting something else). I have heard greating things about the Tamron 28-75 2.8; things like, it has great picture quality. I am quite picky when it comes to image sharpness.

Things i would like to know about these lenses:
1) I have read, supposedly a typical concern, about when buying third party lenses, because they reverse-engineer the lens, that when i upgrade my camera body, it might not opperate properly with the new body. Is this true?
2) I hear the Tamron lens (or all three) are quite old, do they now have a model that replaces them?
3) Anything else i sould be wary of, if i buy into these brands?

Thanks for the replies, you will be doing me a huge favour.
The Tamron 28-75 without hesitation..No contest. The best lens in that category that I have ever used. Unfortunately was when using Canon. Brutally sharp!
11-15-2007, 06:06 PM   #7
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I bought the Tamron...

thanks for the quick replies, i immediately just bought the Tamron from Adorama (online). Now, i gotta sell something to compensate (at least i feel like i do, but i don't necessarily have to) lol. Perhaps i'll post some images i take with it to convince others that it is a great/poor lens.

I just thought of another question. Will the Tamron lens communicate with my K100 and fgz 540? As in, i won't experience any exposure/flash output issues?

Last edited by Tingchaleun; 11-15-2007 at 06:26 PM.
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