Here're some quick'n dirty sample images taken with the K10D and RAW-converted via ACR 3.7.
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
50.0mm
Exposure Data:
f/4.0 @ 1/1000s
Size
2592x3872
Make
PENTAX Corporation
Model
PENTAX K10D
ISO Speed
200
Focal Length
50.0mm
Exposure Data:
f/5.6 @ 1/1250s
Size
3872x2592
Make
PENTAX Corporation
Model
PENTAX K10D
ISO Speed
200
Focal Length
68.0mm
Exposure Data:
f/4.5 @ 1/640s
Size
3872x2592
Make
PENTAX Corporation
Model
PENTAX K10D
ISO Speed
200
Focal Length
88.0mm
Exposure Data:
f/4.5 @ 1/500s
Size
2592x3872
Make
PENTAX Corporation
Model
PENTAX K10D
ISO Speed
200
Focal Length
50.0mm
Exposure Data:
f/11.0 @ 1/160s
Size
2592x3872
Make
PENTAX Corporation
Model
PENTAX K10D
ISO Speed
200
Focal Length
50.0mm
Exposure Data:
f/4.0 @ 1/4000s
Size
2592x3872
Make
PENTAX Corporation
Model
PENTAX K10D
ISO Speed
100
Focal Length
200.0mm
Exposure Data:
f/5.6 @ 1/500s
Size
3872x2592
Make
PENTAX Corporation
Model
PENTAX K10D
ISO Speed
200
Focal Length
138.0mm
Exposure Data:
f/4.5 @ 1/500s
Size
2592x3872
Verdict
Lately we've seen a couple of impressively performing budget tele zooms like
the Nikkor AF-S 55-200mm f/4-5.6 IF-ED VR but, unfortunately, the
Pentax SMC-DA 50-200mm f/4-5.6 ED is not in this league. The resolution
characteristic of the lens is rather mediocre - the image borders at 200mm
and more so at 50mm are very soft at large aperture settings. For portraits or
close-ups this is a lesser problem because the borders are usually a non-issue here
but for long distance images you better stop down to f/8 or better f/11 to get decent
results. On the plus side the bokeh (out-of-focus blur) is pretty nice (for a slow-speed
lens) and CAs as well as distortions are quite well controlled. The level of vignetting
is fairly high at wide-open aperture although not a big issue beyond. The build quality
of this extremely compact lens is pretty decent. All-in-all you should prefer the
Pentax DA 55-300mm f/4-5.6 ED instead.