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11-03-2006, 09:32 PM   #1
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SIGMA 17-70MM DC 2.8-4.5 macro: thoughts on this?

hi

I was looking at this lens as a all around lens that will fit my needs for landscape with portriats being the main focus

Is this a good sharp lens?

how about macro performance? would it be recommended to still have extension rings with it?

thanks

11-04-2006, 12:28 AM   #2
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Most sigma Dc lenses are sharp including zoom (newer generations especially in the standard range; not too sure when sigma dc zooms compared to pentax zoom - never owned pentax zooms)

sigma tends to focus mainly on MTF rather than colour as the photos tend to wash out a bit (though u can rescue the shots with post processing).

However sigma ex ranges do have great colour; most of them hunt even in great daylight.

if you really prefer macro in sigma ranges, it is either sigma 50mm f2.8 macro or 150mm f2.8 macro (rumor says 150mm f/2.8 with pentax mount is already released).

Or refer to the threads talking about pentax macro or tamron
11-23-2006, 09:36 AM   #3
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Well, I can certainly recommend this 17-70 lens. I recently got one as a replacement for a FA24-90.

I think the colour rendition is good, it is sharp and detailed with a good zoom range. The 17mm makes it usable indoors and I haven't noticed much difference in the loss of the 20mm at the top end.

Haven't tried the macro of it yet as I have a Tamron 90mm macro lens, but it can focus down to 20cm, but you won't get 1:1 out of it.

I've heard of some sample variations, so check it out properly, if you consider buying it.

Regards
Mike
11-23-2006, 03:13 PM   #4
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QuoteOriginally posted by Mike Nielsen Quote
I've heard of some sample variations, so check it out properly, if you consider buying it.
QC has always been Sigma's biggest problem.. Their lenses can be great, but don't buy from somewhere you can't take it back to easily and exchange if you get a bad one...

11-23-2006, 04:51 PM   #5
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The sigma 17-70 is definitely a great lens and a nice range...

I use it for landscapes mainly, well it can take close ups but it is not a real macro lens.

A few examples:
K100D - Sigma 17-70 @ 17mm - 30 sec - f5 - ISO 200
Picture 1

K100D - Sigma 17-70 @ 70mm - 1/1250 - f8 - ISO 200
Picture 2

K100D - Sigma 17-77 @ 70 mm - 1/25 - f10 - ISO 200
Picture 3
11-23-2006, 06:54 PM   #6
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Original Poster
QuoteOriginally posted by Duplo Quote
The sigma 17-70 is definitely a great lens and a nice range...

I use it for landscapes mainly, well it can take close ups but it is not a real macro lens.

A few examples:
K100D - Sigma 17-70 @ 17mm - 30 sec - f5 - ISO 200
Picture 1

K100D - Sigma 17-70 @ 70mm - 1/1250 - f8 - ISO 200
Picture 2

K100D - Sigma 17-77 @ 70 mm - 1/25 - f10 - ISO 200
Picture 3
thanks the pics look great!
how is the boeken (sp?) at 70mm as far as a portriat shot goes?

our snow is going to arrive at any time so your photos just gave me that cold reminder

cheers

randy
11-23-2006, 08:05 PM   #7
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QuoteOriginally posted by slipchuck Quote
thanks the pics look great!
how is the boeken (sp?) at 70mm as far as a portriat shot goes?

our snow is going to arrive at any time so your photos just gave me that cold reminder

cheers

randy
Thank you

Well i am not sure about portraait bohkeh, have not used it for portraits yet as far as I recall.

I prefere the 70-200 f2.8 for portraits it is faster at the wide end.

I can test it for portraiture in the during the weekend though.

Ohh and by the way, that tiny bit of white stuff does not really qualify as snow, it has to get above 6 feet to count as real snow

take care
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