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03-01-2013, 08:13 AM   #1
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lens help

Hi all
I have just got my first SLR a K10D and I got a 18-55 and 50-200 mm lenses with it
what I am after are suggestions for other lenses I could need I want to try to take all
types of pictures from close up to landscape
Thanks for looking

03-01-2013, 08:21 AM   #2
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Welcome Aboard! There is a nice freeware program that will analyze your photos for things like Focal Length, F stop used, etc. that I recommend folks use to decide what Focal Length they really use most.

It's called Exposure Plot and you can get it from
Wega2 JPG Image Viewer | Exposureplot Exif Analyzer | Slide Show | Aspect Ratio Changer | Digital camera related program

That way you can look at your photos and decide what YOU do with the zooms you already have and make the best choice about which Prime to buy.
03-01-2013, 09:04 AM   #3
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I replaced the first-generation 18-55 kit lens with a DA16-45 and it was outstanding on the K-10. It's still good on the K-5, but I got the 18-135 last year so don't use it as much. The 16-45 has the advantage of not being expensive, usually used prices around $200.
03-01-2013, 11:42 AM   #4
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I replaced the kit lense with the Pentax 17-70 and opted for the 55-300 instead of the 50-200
These two lenses served me well for the first year or so.
In Photoshop elements, you can select photos by focal length.
I found that a lot of my photo's were clustered around 20mm, 40mm and more than 200mm.
Based on that I've added the DA21 and DA40. My 17-70 stays in the bag more often than not now.

Once you've shot for a while, you will have a better sense of your favourite focal lengths.


03-01-2013, 11:45 AM   #5
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You might want to try a prime lens. My personal choice are the Limiteds but you may want to consider the DA 35 or 50 to start with. The 35 would be a great IQ walkabout lens and the 50 is great for portraits.
03-01-2013, 05:49 PM   #6

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Location: Oklahoma USA
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It depends on what you mean by "all types of pictures." For the pictures I generally take, mostly landscapes or static nature images that are often taken with a tripod, faster lenses would only occasionally be an advantage (and occasionally a disadvantage in weight and space.) But it would be different for sports, or possibly portraits, for example. My priority would be a wider lens - preferably down to 10mm or so, so one of the Tamron or Sigma lenses in that range, probably.

If the two lenses you have now are good copies, and especially if you don't often use the lenses wide open, I wouldn't rush to "trade up" for optical performance, only for getting some new functionality that you don't have now. In an earlier life I used all SMC Takumar primes exclusively (plus one Vivitar prime), and from them migrated to mostly Canon consumer-grade zooms. The flexibility and cropping efficiency of the zoom easily outweighed any optical disadvantages. At smaller apertures there is just not a huge difference in the performance of any of the (admittedly all "consumer-grade") lenses I've tested.


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