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

Started 4 months ago | Discussions thread
Hythloday Senior Member • Posts: 2,220
Re: 17-70mm lens (Pentax or Tamron advice please)

Stephen_H wrote:

This 17-70 looks like the perfect replacement, and the reviews on both are favorable.

The Pentax DA17-70mm is my favourite lens but you should know how to use it. I always focus at 70mm, lock focus, zoom out to the desired focal lenght and take my picture. Sometimes when contrast is low, it has difficulty with focussing. As it has the quick shift AF system you can "assist" the AF. It will focus automatically then if you turn the ring to infinity.

I used to have a Sigma 17-70mm, which is about equally sharp as the Pentax 17-70mm, but the colours it gives are warmer (more yellow) than those of the Pentax. The Pentax gives nice, rich colours. It has a tendency to underexpose. This is no problem for RAW shooters but may be a problem for JPG shooters.

 Hythloday's gear list:Hythloday's gear list
Pentax K-3 Pentax K-3 II Pentax KP Pentax smc DA 16-45mm F4 ED AL Pentax smc DA* 50-135mm F2.8 ED (IF) SDM +7 more
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