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05-30-2011, 10:48 PM   #61
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after reading some more, doing some tests with my 18-55, and checking my old pics (made with P&S camera) with ExposurePlot, it seems that I use the wide(r) f.lengths quite often. Also, I don't know if 200-300 range is very useful for me "on a daily basis", but I do want to extend further than 55.
I came across Sigma 24-135mm f/2.8-4.5 IF. In the lens database it scores quite high, but it seems that Russian don't like it (on a Russian Pentax forum ), and I don't see much sample pics made with it.
Is it worth buying?
which one is better: 18-250 or the 24-135, IQ wise (I'm aware of price difference)?
also, is there any other lens in 18-200 range (starting from 18-28) that you can recommend ? (yes, I've seen the D.B. more than once )

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Edited:
after going through the lens d.b., I wrote down lenses that interested me.
Here is the list:
http://goo.gl/LU9W5
what do you think? which one is better?
Thanks.


Last edited by MK-x; 05-31-2011 at 12:46 AM.
05-31-2011, 09:19 AM   #62
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Those are totally different focal length ranges. But I don't see any reason to believe anything in that superzoom is "better" than the 18-250. Certainly, nothing would likely to be aenough better to make up for the fact that they have less range.
05-31-2011, 10:38 AM   #63
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it seems that the link is not working, so I'm pasting the list here:
18-250mm f/3.5-6.3 Pentax
28-300mm f/3.5-6.3 Sigma
18-135mm F3.5-5.6 Pentax
18-125mm F3.5-5.6 DC Sigma
24-135mm F2.8-4.5 IF Sigma
24-135mm F/3.5-5.6 AD Tamron
05-31-2011, 10:40 AM   #64
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QuoteOriginally posted by Marc Sabatella Quote
Certainly, nothing would likely to be aenough better to make up for the fact that they have less range
they are better in a sense that they are cheaper

05-31-2011, 07:22 PM   #65
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Well, isn't that always the tradeoff? You just get to decide for yourself how much the extra range is worth to you.
05-31-2011, 10:29 PM   #66
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Sigma 24-135mm F2.8-4.5 IF looks like a good option.
the problem is: I can't find it anywhere.
09-03-2011, 08:39 PM   #67
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MK-x, did you ever decide on a replacement walkaround lens to your kit lens? I'm in the middle of similar research because I own the 18-55 / 55-300 kit and I really, really like the 55-300 but sometimes, at family events and such, switching lenses can mean missing those "snapshot" moments. So I'm looking for something in that $400 price range that matches the IQ of the 55-300 but covers the 18-24ish - 135-250ish range and the Sigma 18-250 is what I'm leaning toward. I'm curious what lens your research journey ended with (or if you've decided yet).
09-03-2011, 10:33 PM   #68
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eventually I bought a Tamron 24-135 3.5-5.6 from one of forum members.
the range is good for my shots. I can't really compare the IQ, since I'm new to DSLR and I don't shoot much, but this lens got 8.86 out of 7 reviews in the lens database (on this site).

09-04-2011, 06:24 AM   #69
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Thanks! That's another one on my radar. Decisions, decisions...
09-05-2011, 03:54 AM   #70
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QuoteOriginally posted by HockeyDad Quote
Thanks! That's another one on my radar. Decisions, decisions...
If you are concerned about price then the Sigma 18-125 is a very decent lens : check out this link to see what can be done in the right hands (and with 'just' an old Pentax Ist too) !

5 years with the *ist DS (60 IMGs in replies, threaded view?) [Page 1]: Pentax SLR Talk Forum: Digital Photography Review
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