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Forum: Pentax DSLR Discussion 07-13-2015, 02:46 AM  
Pentax K-3 New User and sampels
Posted By Nicolas06
Replies: 30
Views: 3,136
Difficult to say anything from this shoot. Only the heart of center is in focus and you provide a websize picture.
Forum: Pentax DSLR Discussion 07-08-2015, 11:57 PM  
Pentax K-3 New User and sampels
Posted By Nicolas06
Replies: 30
Views: 3,136
I'll also say to contradict norm (politely, we don't need to agree !) that while this 18-135 is great for the price and good compromize that it will not render that great, in particular at the long end (50-135mm) and is not that great at 18mm neither. Even in the middle of the range, say 35mm, it does't achieve say DA35 ltd sharpness and does't provide the same constrast, the same feeling a high end prime could provide. And no sharpness it not only resolution but contrast and micro constrast too.

The good thing is the great price, in particular bundled to a body, the high quality build of the lense and the great range, WR thing. That a great lense overall.

But, even for landscapes, I continuously surprized but how much better some prime do perform... That's DA35 ltd, even basic FA50 or DA50 or FA77... And we speak of range near to that 50-70mm you use a lot.

I'd say the DA50 f/1.8 or DA35 are great lenses to go to the next level. They are not expensive and bring quality. In a zoom the new 16-85 look better overall and if you are not that interrested in performance past 85mm it might be a better deal than the 18-135. In zoom the alternative would be the 50-135 in addition to either a 16-50 or with the 18-135.

normhead want to put the 18-135 as an excelent lens, this a great or excelent compromize lense. Not excelent in optical quality. It may have great resolution at 24mm and be acceptable for most shoot in general, but that's the end of it. Even for this 24mm I'll choose DA21 instead of DA18-135 because while the DA21 might not offer more resolution, it does offer better colors and constrast and better flare resistance too.

Honestly you may not have to be that concerned by ultimate sharpness or performance neither so this is really not that bad. The lense can get you very far.

But this is still average in optical quality. You'll not get the rendering of better zooms or primes. Even for landscape it will show and you don't even need to go 100% to spot the difference in rendering with say DA35 ltd or FA77. Looking at pictures full screen is enough to the see a visible difference.

Is it worth the money while post processing can likely remove half of that difference? Depend of what you are after. If you love great dynamic range, constrasty picture and shoot a lot in backlight. Yeah sure. If you like shallow deph of field, 18-135 is simply not in the game any range with it apperture and counting you better of with f/8 with it. For many shoots easy shoots, you'll not see any difference once you managed the post processing.
Forum: Pentax DSLR Discussion 07-08-2015, 11:46 PM  
Pentax K-3 New User and sampels
Posted By Nicolas06
Replies: 30
Views: 3,136
+1, to me this give a good summary.
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