PIX 2015

Pentax smc DA 17-70mm F4.0 AL (IF) SDM

Announced Jun 3, 2008 •
Zoom lens | Pentax KAF3
Tatouzou
 

IMO, this lens is a bit underrated, because the SIGMA 17-70 catched all the attention, thanks toits f2.8 aperture at the short end. Best in-depth review of the Pentax DA 17-70 f4 on the web is SLR-Gear (IR): http://slrgear.com/reviews/showproduct.php/product/1208/cat/46 Also a good report on photozone. Bought mine from my son in september 2014, because he nows only shoots primes. Though still available new, this lens is IMO now replaced by the DA 16-85 f3.5-5.6: same size and weight, but DC ...

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PNTX USER
 

This is a great lens if you are only taking one lens with you.  It's zoom range from wide angle to short telephoto is very capable.  The SDM focus is amazingly silent especially compared to the 18-55 kit lens that you would normally get when you buy a Pentax camera. The 17-70 is a bit heavy but I got used to it after a little while.  It's main drawback is the lack of speed - it's max aperture is f/4 which is limiting in low light situations.  If your camera has a good sensor this can be ...

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Todd Ka
 

This is the normal zoom to buy. After being burned by another l ens that failed out of warranty twice, I rented this lens to try before buying. I liked it so I bought it brand new. I would prefer it to be a screw drive focus, but Pentax seems to have figured out SDM and this lens does not have the huge number of reported failures as some of their other lenses ... I would say that buyers can purchase this lens without fear of premature failure.   Mine worked perfectly.  Though I still ...

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senn_b
 

This must be the most versatile DA lens from Pentax. You can use it almost in every context, .. landscape, portrait, arcitecture, .. even macro (closest focus 28cm, magnification rating 0,31x). Very sharp from f5.6, and razor sharp from f8 through f11, that's whatever focal lenght. Best tested result with f10/33cm. SDM technology makes focusin process fast and silent. Manual focus ring is full time operational (that’s even when AF is on). That’s more than a walk around lens. Problems: no WR, ...

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This is the first Pentax SDM lens I have ever owned I have to check all the time to make sure it's working as you can barely hear it. Great results so far Problems: Noticeable curved horizons when I take photos at 17mm Also a bit soft at F4, but once you get to F5.6 and smaller, you can't really tell

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