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

Started 3 months ago | Discussions thread
Massao Senior Member • Posts: 2,580
Re: Proof is in your pudding

Hythloday wrote:

Massao wrote:

Are you saying DA 17-70mm is not good for aperture below f/8? If so, we agree:-D

Some 14 years ago I tested the DA16-45mm qnd the Sigma 17-70mm, see:

Pentax 16-45mm vs Sigma 17-70mm: Pentax SLR Talk Forum: Digital Photography Review (dpreview.com)

The best aperture is 8. The Pentax DA16-45mm is slightly less good below that aperture, whereas the Sigma 17-70mm is really horrible, at the WA end. This is conformed by the DXOMARK test.

The Pentax DA117-70mm performs slightly better than the Pentax DA16-45mm.

Unfortunately, can't see those images.

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Kind regards,
First camera: Canon FTB; First autofocus SLR camera: Pentax; First Nikon: F601 (N6006); First digital camera: Sony DSC-W5; First DSLR: Nikon D70; First mirrorless ICL camera: Samsung nx11

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