Hello all,
Please help me out decide which lens to buy.
I initially had Sigma 17-70 for almost 2 years with my K7. You can find sample photos I took with this lens and my K7:
http://www.flickr.com/photos/42220695@N02/
Since I wasn't happy with f4 at its 70mm for indoor pics while using high ISO on K7, I decided to sell it and get Tamron 28-75 f2.8 which has excellent sharpness and is great for taking indoor pics. I also paired that up with Pentax external flash which was a great addition for low lighting.
Then, I decided to sell my K7 and get K5 as I needed better ISO and image quality sensor. Now, when I look back, I kindda regret why I sold my Sigma17-70.. I would have had no problem with its 70mm f4 in low lighting with K5 and extra wide angle would make it a great walk around lens over Tamron 28-75. Sometime I feel Tamron is too long for some places. In terms of IQ, I have to say my Tamron is way sharper than siggi 17-70.
so here what I wanna do: Keep Tamron 28-75 for portrait. I'm going to also purchase Petax 50-135 to add to my portrait lenses.
Quality is still important factor. Macro would be a Plus... I noticed, extra 20mm becomes handy sometime..
so based on your experience especially on K-5, for general walk around, which one do you recommend? ( IQ is important too )
Sigma 17-70 vs 17-50 vs Pentax 18-135 vs Sigma 18-250 vs Tammy 18-200 ?
Thanks,
Last edited by dr_romix; 10-26-2011 at 07:40 PM.