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07-19-2011, 09:00 AM   #31
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Hmm.. I have some fast glass, and some damn good one at that - the FA limiteds. I have our beloved ultrawide, the DA 15, or the legendary Super-Tak 50/1.4... But, with a K-5...I'd actually probably go for my S-M-C 28/3.5, just for focal length alone. And then beat myself everytime it got darker

07-19-2011, 09:01 AM   #32
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One lens - that's just wrong on so many levels.

If I had to pick just one, based on the type of shooting I do most often, it would be a 100mm/2.8 macro. I have the A 100/2.8 but the new DA version would be fine as well. I don’t do a lot of wide angle work but I like macro and portraits. 100mm is a good portrait length and works well as a short telephoto. Opinions will vary of course but for my purposes I think 100mm macro would be the answer for me.

Tom G

Last edited by 8540tomg; 07-19-2011 at 09:22 AM.
07-19-2011, 09:44 AM   #33
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DA18-135WR, it is a perfect match for my K-5 and very versatile.
07-19-2011, 09:52 AM   #34
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DA*16-50 SDM; it's one of their most modern to fit a modern body, i like photographying urban landscapes so the range it offers pretty much covers everything from enviromental portraiture (animate and non-animate objects) to individual potraits. The combination of the lense's fast 2.8 and the body's good IQ should be enough for not so good light to exceptional lit scenes

07-19-2011, 10:27 AM   #35
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Another + for FA 31mm f/1.8 Ltd.
07-19-2011, 10:27 AM   #36
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For me, this is a no-brainer. One of the (many) attractions of the Pentax line for me is their pancake lenses: Small, light, unobtrusive. The 21mm is practically glued to my K5.
07-19-2011, 11:00 AM   #37
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My choice is the 18-135mm WR. Here's why.

Six months ago, I would have been happy with my Pentax 18-250mm, which is remarkably versatile. It's definitely a "super zoom." However, for a do-all lens if you are just carrying the camera with no extra lenses, it falls short for a number of reasons.

1. It's heavy and somewhat bulky compared to the 18-55mm kit lens.

2. Held downwards, zoom creep happens - the lens extends on its own by gravity. It's a nuisance to have to lock it down in the 18mm position, and when unlocked, hold onto the zoom ring to keep it from extending when shooting down.

3. It's not weather resistant. I'm contemplating a trip to Hawaii, and I want the lens to be as effectively water sealed as my K-5.

So I recently purchased the Pentax 18-135mm WR zoom. I think this is the ideal "walk around" single zoom lens for the K-5. Here's why:

1. Perfect match for the K-5. Although it doesn't zoom as far as the 18-250mm, the K-5's 16.2 megapixel pictures can give you a lot of crop latitude. Also, although the lens isn't particularly fast, with the K-5's extended ISO range and more than acceptable IQ at high ISOs, that isn't as much of a factor.

2. It's lighter than the 18-250mm, and only marginally heavier than the kit zoom 18-55mm.

3. It's just a smidge longer than the 18-55mm, and easily fits into most small camera holsters/pouches designed for kit lenses.

4. There is no zoom creep - no need to fuss with zoom locks or worry about shooting downward.

5. Any minor distortion or CA issues can be taken care of in PP.

6. Auto focus is blazingly fast, quiet and accurate with the DC drive motor on this lens. I can get quick shots of opportunity without overly disturbing humans or animals.

7. It's weather resistant - using it in a rainstorm will be a minor inconvenience and there will be no worry about water getting into the works.

8. The zoom range will be sufficient for 90% of the shooting I will probably be doing, with a 35mm film equivalent of 28 to 207mm. In my old film days, I would have given anything for a lens like this.

9. The pictures I'm shooting with it show great color fidelity and sharpness. Any drop off of sharpness at the edges is minor and not a concern if you shoot with cropping in mind.

10. With the great zoom range, there is no need to swap lenses constantly in the field and introduce the risk of getting dust or other crud on the sensor.

11. I like the manual focus override feature as well, allowing fine tuning and special effects without using the selector switch.

So the upshot is that my vote goes to the 18-135mm WR. It may not be the best at everything, but it's excellent for almost every situation, and very packable.


Last edited by PALADIN85020; 07-19-2011 at 11:12 AM.
07-19-2011, 11:58 AM   #38

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tamron or sigma 17-50/2.8 - great IQ in the most important range.

07-19-2011, 02:55 PM   #39
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Probably the 12-24. It has excellent IQ with a very useful range. I'd have a hard time giving up the fisheye, though.
07-19-2011, 05:38 PM   #40
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DA 35mm f/2.8 Limited Macro - it's just so versatile.
07-19-2011, 05:55 PM   #41
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FA 43 just a bit better then the other 2 amigos.

Cannot be matched for sharpness
07-19-2011, 06:09 PM   #42
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DA 40mm f2.8.
07-19-2011, 06:10 PM   #43
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I'd likely choose my DA 55-300mm zoom. It is slower than I'd like and not as good as I'd like but covers the focal lengths I use most often. Include a Raynox 150 I'd be pretty happy.

PS I cannot foot zoom well & like tight compositions, head shots, etc.

PPS I was surprised at the large fraction who choose a wide lens!
07-19-2011, 06:31 PM   #44
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I think my FA50mm f1.4 would be the one I would choose as I do a lot of indoor shooting and the 77 is a bit long in a lot of instances.
07-19-2011, 06:43 PM   #45
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lol at people listing a zoom... hardly a challenge!

id go the da 70mm

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