Monobod
'Phantom' of the forum!
Reged: 03/04/2003
Posts: 5992
Loc: Just West of Norwich, Norfolk
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A friend of mine is contemplating buying a K20D as his first digital slr, having been using film for some time. He has asked my advice about the Sigma 18-200 f3.5-6.3 lens. I have not got one, so if anyone has and can give some pointers as to image quality, then that would be great.
I have suggested the Pentax 50-200 f4-5.6 and the Sigma 17-70 f2.8-4.5 combination. Any comments on the 50-200 would also be helpful. I have the 17-70, so no help needed there.
Thanks,
Hmmm, just noticed on the Sigma site that the 18-200 is not available in Pentax fit...... 
David.
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David.
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Photos hosted by Flickr.
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I see the world thro' a viewfinder, but the world watches me via CCTV!
Edited by Monobod (20/06/2008 16:19)
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dangie
Puff Pastry Connoisseur
Reged: 04/08/2006
Posts: 439
Loc: Mayrhofen Austria (I Wish..)
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How about this Tamron
Tamron 18-250mm
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My Brain's five feet eight inches from the ground
But my mind's still in the gutter....
Dangies Flickr
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Zou
Pooh-Bah
Reged: 05/02/2007
Posts: 2117
Loc: Edinburgh
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Why not the Pentax 18-250? Would seem the obvious choice...
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Zou's Flickr Page
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johnriley1uk
addict
Reged: 08/06/2006
Posts: 436
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I would suggest the combination of the Pentax 18-55mm and 50-200mm lenses. Inexpensive, very good quality, uniform operation, filter sizes the same, compact and low weight.
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Best regards
John Riley
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Monobod
'Phantom' of the forum!
Reged: 03/04/2003
Posts: 5992
Loc: Just West of Norwich, Norfolk
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Thanks John, I will pass it on. He is also looking at the Tamron 18-250, but I was concerned about possible problems with colour fringing and distortion with such a wide zoom range.
John, your suggestion is a good one, because he has to buy the lens kit anyway to get the £100 cash back offer. 
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David.
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Photos hosted by Flickr.
www.flickr.com/photos/monobod/
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I see the world thro' a viewfinder, but the world watches me via CCTV!
Edited by Monobod (21/06/2008 10:05)
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Done&rundleCams
Senior Member
Reged: 20/12/2001
Posts: 16752
Loc: Vancouver, BC
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... the Pentax DA 18-250 and here are sample pics (showing the zoom range)
and
a link to some large files done with the Pentax DA 18-250 @ the 250 end :shocked;
Granted the DA 18-250 is a little more expensive than the DA 18-55/50-200 combo but it is virtually
the same price as the Tamron 18-250 and I have found, from personal experience, the less you have
to change lenses the better 
Cheers,
Jack
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Life is a Photo-op
MY BLOG: www.nakedmanonawire.blogspot.com
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Monobod
'Phantom' of the forum!
Reged: 03/04/2003
Posts: 5992
Loc: Just West of Norwich, Norfolk
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Thanks for that jack, nice to hear from you again. I thought you might have dissapeared under a mile of snow!
We don't get much here anymore, due to 'Global warming', it just stays cloudy all the time. it is midsummers day today and we have 100% cloud cover.
Not the best conditions for vibrant colour photography.  We are all a bit tiffed (polite version) off with it. I expect you are going to tell me it is gloriously sunny and warm there!
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David.
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Photos hosted by Flickr.
www.flickr.com/photos/monobod/
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I see the world thro' a viewfinder, but the world watches me via CCTV!
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Done&rundleCams
Senior Member
Reged: 20/12/2001
Posts: 16752
Loc: Vancouver, BC
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Quote:
Thanks for that jack, nice to hear from you again. I thought you might have dissapeared under a mile of snow!
We don't get much here anymore, due to 'Global warming', it just stays cloudy all the time. it is midsummers day today and we have 100% cloud cover.
Not the best conditions for vibrant colour photography. We are all a bit tiffed (polite version) off with it. I expect you are going to tell me it is gloriously sunny and warm there!
Hi David,
Maybe a mile of rain  and our weather has been exactly like yours -- cloudy with an occasional glimpse of sunlight ...........and, generally, just
before it sets
Cheers,
Jack
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Life is a Photo-op
MY BLOG: www.nakedmanonawire.blogspot.com
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