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03-21-2008, 09:28 AM   #1
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Why I love my Sigma 17-70mm!

From a series documenting the construction of a pedestrian bridge. The Sigma 17-70mm is a very nice lens!

https://www.pentaxforums.com/gallery/images/807/1_test_sigma_17-70mm__1_of_1_.jpg

K100d
ISO 400
f10
1/125th
70mm

I also get great results shooting indoors - close to the subject wide open - f/2.8. For my needs, 17-70mm is an ideal focal range. This lens combined with a 70-200mm f/2.8 (hopefully the Tamron) is just about all that I'll need for my photojournalism work.

I've read that the Sigma 17-70mm produces great IQ on k20d's - which is on my list.


Last edited by superfuzzy; 03-21-2008 at 09:54 AM. Reason: typo fixed
03-21-2008, 09:52 AM   #2
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QuoteOriginally posted by superfuzzy Quote
1/250th
............1/125th
03-21-2008, 10:04 AM   #3
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QuoteOriginally posted by deejjjaaaa Quote
............1/125th
fixed
03-21-2008, 10:25 AM   #4
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I sold my Sigma 17-70mm lens due to vignetting when shooting wide.

03-21-2008, 10:29 AM   #5
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I'm waiting for the rumored pentax 17-70 f/4 myself. Juicy constant aperture.
03-22-2008, 04:39 AM   #6
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Yes that would be nice. Still the Sigma 17-70 is really nice on my K20D The 14MP makes such a difference. Did a macro shot of a wasp sting on my skin and I swear you can see the skin cells
03-22-2008, 05:04 AM   #7
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QuoteOriginally posted by Geekybiker Quote
I'm waiting for the rumored pentax 17-70 f/4 myself. Juicy constant aperture.
I would take an f/2.8 to f/4.5 over a constant f/4 any day

Here's an example of a quick one-off shot with a 17-70 and K10D:



Crop:



Now tell me this lens isn't sharp!

- Andrew
03-22-2008, 06:17 AM   #8
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now that's sharp!

03-22-2008, 12:47 PM   #9
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I love this lens too.

03-22-2008, 02:44 PM   #10
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QuoteOriginally posted by AndrewShirley Quote
Now tell me this lens isn't sharp!

- Andrew
No Andrew, I won't tell you that. But I will tell you something else: That kid needs some sleep!
03-22-2008, 03:28 PM   #11
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QuoteOriginally posted by Miserere Quote
No Andrew, I won't tell you that. But I will tell you something else: That kid needs some sleep!
Yes, the pre-flash strikes again LOL

- Andrew
03-22-2008, 05:27 PM   #12
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I'm another big fan of the 17-70. Before I went on vacation last summer I was waiting and waiting for the DA * 16-50mm but it wasn't released in time so I "settled" for the Sigma. After all the problems with the 16-50 I am so glad that it wasn't released on time. The Sigma was perfect for the trip and produced some great shots and I took a lot of them (I probably took around 1500ish shots with it over the 3.5 week vaca). My tokina AT-X 400mm getting the rest


John
03-22-2008, 06:21 PM   #13
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Indeed the 17-70 is a useful tool that gives pleasing results.

Last edited by pw-pix; 03-22-2008 at 06:26 PM.
03-23-2008, 04:10 AM   #14
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QuoteOriginally posted by thear Quote
I sold my Sigma 17-70mm lens due to vignetting when shooting wide.

Vignetting ??

My 17-70 suffer absolutely no vignetting, it does suffer slight distortion though (correctable in PP), perhaps you mean this ??

I agree with the OP that the 17-70 is an excellent lens, I particuarly like its contrast/colour rendition, pretty sharp too !!

I think some of the negative comments regarding the 17-70 are due to Sigmas Quality control, get a good copy and its an excellent lens - looking forward to the Pentax version to see if it can improve upon the Sigma, it's got a job on tis hands !! - it hopefully won't suffer the CA that some of the new lenses seem to.

simon
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