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07-09-2008, 06:59 AM   #1
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Sigma 70-200 mm f/2.8 II EX APO DG MACRO HSM

Test for the Nikon mount but should be the same for Pentax.
You need not read Polish. You can quess from diagrams, samples.
Unfortunately not optically as good as the Tamron 70-200.

Only autofocus works (a lot) better on Sigma



Still waiting ...

07-09-2008, 09:02 AM   #2
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Seems good for portraits, which is what I'd likely end up using it for. I'd have to see if the AF is lots faster than my 50-135 though.

I'd love to see a comparison between it with a TC and the comsumer 55/70-300s to see if it's ok for holidays too.
07-09-2008, 10:59 AM   #3
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I was waiting for these 2 lenses in pentax mount, but i'm beginning to think the DA50-135 may be a better choice
07-09-2008, 11:19 AM   #4
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I think the review is useless since it was tested on inferior camera's, when It's tested on the K20d will see how good it really is.

07-09-2008, 01:17 PM   #5
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Waiting for this one.

I hope they make enough of these when they do release them as they are going to sell well. IQ is important to me but HSM focus speed/silence and 2.8 continuous are sorely needed.
07-09-2008, 02:15 PM   #6
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QuoteOriginally posted by Fl_Gulfer Quote
I think the review is useless since it was tested on inferior camera's, when It's tested on the K20d will see how good it really is.
the D200 is in all seriousness in the same range as a K10D

since most lens tests (if we are to go by photozone) are done on a K10D i think this is a fair comparison

as i have not read any reviews of the DA*50-135 on a K20D as of yet, my money will remain with the Pentax unit versus all others.
07-10-2008, 01:34 AM   #7
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QuoteOriginally posted by Fl_Gulfer Quote
I think the review is useless since it was tested on inferior camera's, when It's tested on the K20d will see how good it really is.
You are joking of course …
What a camera has to do with astigmatism, CA, flaring, resolution fall off at the borders and/or wide apertures of a specific lens?
07-10-2008, 04:09 AM   #8
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I actually think the D200 and the K10D might actually have the same sensor. I'm pretty sure they're at least both Sony 10MP CCDs, so close enough....

Or is it the D80 that shares the K10Ds sensor? Either way, I wouldn't go around calling the D200 an inferior camera.

QuoteOriginally posted by Gooshin Quote
the D200 is in all seriousness in the same range as a K10D

since most lens tests (if we are to go by photozone) are done on a K10D i think this is a fair comparison

as i have not read any reviews of the DA*50-135 on a K20D as of yet, my money will remain with the Pentax unit versus all others.


07-10-2008, 07:54 AM   #9
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if this lens performs like this on the D200 it will do similarly on the K10D and possibly worse on the K20D, so our choice is the tammy better optically but slow AF and hit or miss sample varaition or the Sigma optically worse but faster AF, or the 50-135, optically good with good af but too short focal range for some.
07-10-2008, 09:00 AM   #10
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QuoteOriginally posted by Torphoto Quote
if this lens performs like this on the D200 it will do similarly on the K10D and possibly worse on the K20D, so our choice is the tammy better optically but slow AF and hit or miss sample varaition or the Sigma optically worse but faster AF, or the 50-135, optically good with good af but too short focal range for some.
I am starting to like the idea of the 50-135 with a TC that I heard may be offered in the future.
07-10-2008, 09:27 AM   #11
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QuoteOriginally posted by cosmicheretic Quote
I am starting to like the idea of the 50-135 with a TC that I heard may be offered in the future.
Read this first
There are many tests TC vs UP-Conversion on the net but I don't have them for the moment.
07-10-2008, 09:48 AM   #12
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QuoteOriginally posted by gkopeliadis Quote
Read this first
There are many tests TC vs UP-Conversion on the net but I don't have them for the moment.
Thanks for pointing that out. The TC shot looked softer than the upconverted on in the examples. Do the other tests confirm the results of the one in your link? Maybe I don't need the 70-200 if I can upconvert crops on the 50-135 to look that good?
07-10-2008, 10:01 AM   #13
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QuoteOriginally posted by cosmicheretic Quote
Thanks for pointing that out. The TC shot looked softer than the upconverted on in the examples. Do the other tests confirm the results of the one in your link? Maybe I don't need the 70-200 if I can upconvert crops on the 50-135 to look that good?
More or less they point to the same results. But I urge you to google a little on that.
07-10-2008, 10:12 AM   #14
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Personally I'd wait until both lenses come out in the Pentax mount before comparing them.
For some reason some of Sigma's lenses appear to work better on one brand than the next.
And for all I know Tamron is like that as well.

Either way, In my opinion it'll be a nice lens, ideal for several people here.
I'd like the Sigma if the price was right
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