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Forum: Pentax DSLR Discussion 07-06-2015, 07:51 AM  
Pentax K-3 New User and sampels
Posted By jatrax
Replies: 30
Views: 3,134
So Norm, you like the 18-135 then? :)
Forum: Pentax DSLR Discussion 07-04-2015, 07:26 AM  
Pentax K-3 New User and sampels
Posted By jatrax
Replies: 30
Views: 3,134
Pentax lenses in order of image quality (and cost):
The 18-135 is a consumer walk around lens. It is in fact very good for what it is, my wife uses it 80% of the time. However, as already noted corner sharpness is not great and it is rather slower. The somewhat newer DA 16-85 is reputed to be sharper and a good lens but I've no experience with it.

The da*16-50 and da*50-135 are the premium combination that cover roughly the same focal lengths as the 18-135. I use da*16-50 for perhaps 50% of my work. It is excellent, with the only issues being some distortion at 16mm and the SDM drive has in the past been unreliable. That seems to be largely fixed as we do not see many complaints these days. The same with the da*50-135. They are both big, heavy professional lenses that deliver as good as you can get in zoom lenses.

And last, for the ultimate sharpness you need to go with primes. Whether a particular shot will be better with a prime or a da* lens is hard to say. The da* lenses are close but most still give the primes an edge. The classic Pentax Limited set would be the FA 31mm, FA 43mm and FA 77mm. The DA set is 15mm, 21mm, 40mm, 70mm. These are even smaller and lighter but a little slower.

So based on your post I would suggest trying a DA*16-50 or taking a look at several of the FA or DA Limited primes.
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