17-70mm lens (Pentax or Tamron advice please)

Started 4 months ago | Discussions thread
MarcosBaez Junior Member • Posts: 31
Re: 17-70mm lens (Pentax or Tamron advice please)

Stephen_H wrote:

Hi all

I'm looking at replacing my 18-55 kit lens on my K-50. This 17-70 looks like the perfect replacement, and the reviews on both are favorable.

What are your opinions on the two?

Native or third party? Which is sharpest? Which focusses better? Which just feels better and gives that warm glow inside?

Definitely the Sigma 17-70 f2.8-4 Contemporary, even compared to the Sigma 17-50 f2.8. And focuses better too.

Only the Pentax 16-85 is sharper than the Contemporary, but it's darker.

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