Pentax SMC DA 10-17mm f/3.5-4.5 ED[IF] Fisheye - Review / Test Report - Sample Images & Verdict
Lens Reviews - Pentax

Sample Images

Here're a few quick'n dirty 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 10.0mm
Exposure Data: f/3.5 @ 1/1250s
Size 2592x3872
Make PENTAX Corporation
Model PENTAX K10D
ISO Speed 200
Focal Length 10.0mm
Exposure Data: f/11.0 @ 1/50s
Size 2592x3872
Make PENTAX Corporation
Model PENTAX K10D
ISO Speed 200
Focal Length 10.0mm
Exposure Data: f/3.5 @ 1/250s
Size 2592x3872
Make PENTAX Corporation
Model PENTAX K10D
ISO Speed 200
Focal Length 10.0mm
Exposure Data: f/9.0 @ 1/320s
Size 3872x2592
Make PENTAX Corporation
Model PENTAX K10D
ISO Speed 200
Focal Length 10.0mm
Exposure Data: f/8.0 @ 1/250s
Size 2592x3872
Make PENTAX Corporation
Model PENTAX K10D
ISO Speed 200
Focal Length 17.0mm
Exposure Data: f/11.0 @ 1/60s
Size 2592x3872
Make PENTAX Corporation
Model PENTAX K10D
ISO Speed 200
Focal Length 10.0mm
Exposure Data: f/11.0 @ 1/160s
Size 2592x3872
Make PENTAX Corporation
Model PENTAX K10D
ISO Speed 200
Focal Length 10.0mm
Exposure Data: f/8.0 @ 1/250s
Size 2592x3872

"Defishing"

As mentioned above it is possible to "reverse" the fisheye effect with the help of tools such as PT lens. It is not a lossless procedure - you abandon some of the outer image portions due to image cropping and the "pixel stretching" produces quite a bit of softness in the image corners.

Here's a sample image kindly provided by Ruediger Neumann:

Move your mouse pointer in/out of the image

As a referece here're also two "defished" sample shots from the previous section.

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 10.0mm
Exposure Data: f/9.0 @ 1/320s
Size 3872x2592
Make PENTAX Corporation
Model PENTAX K10D
ISO Speed 200
Focal Length 10.0mm
Exposure Data: f/8.0 @ 1/250s
Size 2592x3872

Verdict

Fisheye lenses are never really perfect performers. However, these are special effect lenses where sheer quality is more a secondary aspect anyway. The Pentax SMC DA 10-17mm f/3.5-4.5 ED[IF] Fisheye is certainly sharp enough for its purpose and the high degree of barrel distortion is naturally a feature to enjoy and not a bug. However, the Pentax lens clearly has some downsides. The bokeh (out-of-focus blur) is very harsh - see e.g. the "horse" sample image above. A real problem of the lens are lateral chromatic aberrations (color shadows) and, more so, purple fringing (color blooming). Lateral CAs can be reduced but this is barely possible with PF. Normally I'd say that the degree of PF is a show-stopper but a fisheye isn't a normal lens anyway. Compared to similar products such as the Nikkor AF 10.5mm f/2.8 DX or Olympus Digital Zuiko 8mm f/3.5 the price of the Pentax lens is very attractive at around 550€/US$. However, if you're split between a fisheye and a corrected ultra-wide lens you should probably still prefer the latter - fisheye lenses are really specialty items. That all said, it is lots of fun to go out there and play with the Pentax SMC DA 10-17mm f/3.5-4.5 ED[IF] Fisheye ...

Optical Quality: (a perfect sample may be better)
Mechanical Quality:
Price/Performance:



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