Sigma or Pentax glass

[Ptax]

I am considering purchasing one of the following:

Sigma 18-125mm f/3.5-5.6 DC ($230)
OR
Pentax Zoom W/A-Telephoto W/ATelephoto SMCP-FA 28-105mm f/4-5.6 ($170)

I currently have a Tamron 70-300mm and a Pentax 18-55mm.

Recommendations?

Thanks,
David

[danic]

Hey Ptax,

I asked a similar question earlier on about Sigma or Pentax Lenses, and the response I got was Pentax would produce a clearer, crisper image, all things being equal.

I also asked my local camera shop guy who also said a similar thing.

Hope this helps.

[Ptax]

I appreciate the input. Thanks.

David

[almo]

I appreciate the input. Thanks.

David

Most Sigmas are fairly good lenses. I have used quite a few myself, but they are not going to begin to equal real pentax glass, class for class, untill you get up to the EX range, and those are, for a large part, some pretty expensive pro lenses. I too would go with the Pentax version in this case.

[Turkey_Lips]

What will you be using them for? is the main question.