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02-27-2008, 08:39 PM   #1
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Getting K20D tomorrow suitable lens(es)?

I have just bought the new K20D (pick up tomorrow) yeah!
and have been using a Tamron 18-200 XR DI II lens which i have just sold along with my istDs.

I am thinking of getting two lenses to replace this one lens and was thinking 16-45 Pentax f4 (?) and
something else to cover the 55 on range.
Any suggestions for better lenses within a reasonable price range. The 16-45 is $499 here in Australia. Or is there a better option?
Mainly landscapes etc but anything is possible.

02-27-2008, 09:02 PM   #2
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For the money the 16-45 F4 is hard to beat.
02-27-2008, 11:55 PM   #3
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I would go with the Tammy 28-75/2.8. Then you can buy the 12-24/4 later.
02-28-2008, 12:27 AM   #4
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I think I might receive my k20d tomorrow as well... Cannot wait.

02-28-2008, 10:30 AM   #5
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QuoteOriginally posted by marko Quote
I have just bought the new K20D (pick up tomorrow) yeah!
and have been using a Tamron 18-200 XR DI II lens which i have just sold along with my istDs.

I am thinking of getting two lenses to replace this one lens and was thinking 16-45 Pentax f4 (?) and
something else to cover the 55 on range.
Any suggestions for better lenses within a reasonable price range. The 16-45 is $499 here in Australia. Or is there a better option?
Mainly landscapes etc but anything is possible.
My vote is for the DA* 16-50 and the DA* 50-135. But your budget might not allow this. In this month's Outdoor Photographer, they have a list of mid zooms that the pros like, and the kit 55-200 Pentax is in there. For $200 or so, it sounds like a great lens.
02-28-2008, 10:40 AM   #6
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I have the DA 16-45mm, I love it. Above that, I use the DA 50-200mm. For the money, this 2 lens combination works great for me.
02-28-2008, 01:21 PM   #7
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QuoteOriginally posted by marko Quote
I have just bought the new K20D (pick up tomorrow) yeah!
and have been using a Tamron 18-200 XR DI II lens which i have just sold along with my istDs.

I am thinking of getting two lenses to replace this one lens and was thinking 16-45 Pentax f4 (?) and
something else to cover the 55 on range.
Any suggestions for better lenses within a reasonable price range. The 16-45 is $499 here in Australia. Or is there a better option?
Mainly landscapes etc but anything is possible.
I agree with those who've recommended the 16-45 f/4. The Pentax 35mm f/2 prime is sharper and a stop faster, but, well, it's not as versatile as the 16-45. I have 'em both but if I had to keep just one, it would be a painful decision which to keep and which to lose. By the way, I was trying to sell my 16-45 last year but decided to keep it. It's so cheap, I could not get a price for it that was worth the pain it would cause to part with it. I'm very glad I still have it, because I'd probably just have to buy it again.

The 16-45 will also serve you nicely shooting landscapes.

Will
02-28-2008, 03:39 PM   #8
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The DA 16-45mm is a terrific choice for the price. If you can wait a little, the newly introduced DA 55-300mm might be a good option for an affordable tele zoom. Alternatively there is the yet to be released DA* 60-250 on the horizon.

02-28-2008, 07:02 PM   #9
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I know I have to be sounding like a broken record, but the Sigma 17-70 is definiitely worth considering. For the money, it's the most versatile lens out there, lengthwise and if you don't have a problem with buying gently used, usually you can pick one up for around $300 or so.
Sigma 17-70mm f/2.8-4.5 DC Macro Lens Sample Photos and Specifications

If you want beyond that, then either a used F70-210 (sharp!), Tamron 70-300, or Sigma 70-300 APO would give you extra length with no gaps or overlapping.
Pentax smc P-F 70-210mm f/4-5.6 Lens Sample Photos and Specifications
Tamron AF 70-300mm f/4-5.6 LD Macro Lens Sample Photos and Specifications
Sigma 70-300mm f/4.5-5.6 APO DG Macro Lens Sample Photos and Specifications

HTH,
Heather
02-28-2008, 08:54 PM   #10
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Comparing the DA 16-45 & the Sigma 17-70:

The Sigma has the edge in terms of angle of view at the long end but in my opinion this isn't a very big advantage. But the difference at the wide end is quite dramatic. That 1 mm difference in focal length equates to about 10 degrees of angle of view between the two lenses (angle of view increases tangentially). That certainly gives the Pentax the edge when shooting landscapes or interiors. (Pentax 83~35 vs Sigma 72.4~20.2).

Both have aspherical and extra low dispersion elements (Pentax 13 elements/10 groups vs Sigma 15 elements/12 groups). One is a constant aperture while the other is a variable aperture, which could be an issue when using studio flash setups. Sigma has 7 aperture blades vs 8 for the Pentax.

The Sigma focuses closer and has a slightly higher max magnification, not a big issue for wideangles. It is a bigger, heavier lens with a bigger filter thread compared to the Pentax (Sigma 72mm vs Pentax 67mm).

Although the Sigma is plenty sharp, I went with the Pentax because of the wider angle of view figuring that I got other lenses to cover the long end of the focal length (50mm onwards). Also found out the lens resistance to flare is very good for the DA, an important consideration for wide angles. The DA has less distortion than the Sigma at the wide end, though the Sigma is better at the tele end. The Sigma has better center sharpness but a little soft at f/2.8. The Sigma is quite good CA wise.

Here is a link posted by a well regarded Pentax moderator on Clubsnap who did some comparative shots with the 17-70 awhile back. Pentax FA 24-90/3
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