Here're a few sample images taken with the K10D and RAW-converted via CaptureOne LE.
Click on a thumbnail to view the original file (opens in a separate window). Please note that the originals are FULL SIZE
(=several megabytes) which requires quite some bandwidth for downloading so please don't waste the limited resources here.
Make
PENTAX Corporation
Model
PENTAX K10D
ISO Speed
200
Focal Length
70.0mm
Exposure Data:
f/4.5 @ 1/100s
Size
3872x2592
Make
PENTAX Corporation
Model
PENTAX K10D
ISO Speed
200
Focal Length
70.0mm
Exposure Data:
f/4.5 @ 1/160s
Size
2592x3872
Make
PENTAX Corporation
Model
PENTAX K10D
ISO Speed
200
Focal Length
70.0mm
Exposure Data:
f/4.5 @ 1/500s
Size
2592x3872
Make
PENTAX Corporation
Model
PENTAX K10D
ISO Speed
200
Focal Length
17.0mm
Exposure Data:
f/8.0 @ 1/400s
Size
2592x3872
Make
PENTAX Corporation
Model
PENTAX K10D
ISO Speed
200
Focal Length
48.0mm
Exposure Data:
f/4.0 @ 1/1250s
Size
2592x3872
Make
PENTAX Corporation
Model
PENTAX K10D
ISO Speed
200
Focal Length
70.0mm
Exposure Data:
f/4.5 @ 1/1000s
Size
3872x2592
Make
PENTAX Corporation
Model
PENTAX K10D
ISO Speed
200
Focal Length
34.0mm
Exposure Data:
f/8.0 @ 1/125s
Size
3872x2592
Make
PENTAX Corporation
Model
PENTAX K10D
ISO Speed
200
Focal Length
34.0mm
Exposure Data:
f/8.0 @ 1/400s
Size
2592x3872
Verdict
The Sigma AF 17-70mm f/2.8-4.5 DC is a very good standard zoom and a viable alternative
to the Pentax offerings in this range. Generally it is capable to produce very sharp
results although the corner performance leaves a bit to be desired at 17mm at large aperture
settings. The vignetting level could also be a bit better here but most competitors
don't offer a f/2.8 settings anyway and from f/4 it follows the mainstream. The level of
distortions is about typical for a standard zoom whereas chromatic aberrations (color shadows)
are comparatively low. The build quality is very fine for a lens in this price league.
